Abstract
Introduction:
Adolescence is a special phase of life in which fundamentals of psychosocial functioning are formed. The present study investigates how adolescents’ self-perception of social relationships in inclusive classes affect personality functioning. Furthermore, we examine whether the association between self-perceived social relationships and personality functioning is stronger for students with special educational needs in the domains of learning (SEN L) and social -emotional development (SED) than for students without SEN.
Methods:
At two measurement points questionnaire data was collected from 927 sixth- and seventh-graders from 20 primary and 20 comprehensive inclusive classes in Germany.
Results:
Results of longitudinal multilevel analyses show partially different results for sixth- and seventh-graders. Overall, students’ perceived social relatedness predicted personality functioning. Students who perceived their social relationships more positively showed healthier personality functioning. Further, SEN SED represents a potential risk factor for personality functioning. But, we observed that differences in personality functioning between seventh-graders with SEN L or SED and those without SEN decreased over time. Furthermore, SEN does not appear to reinforce the association between low self-perception of social relationships and risky personality functioning.
Discussion:
The findings are discussed in the context of inclusive education and implications for future research as well as practice are given. Overall, our findings contribute to a better understanding of students’ psychosocial development in inclusive learning environments.
1 Introduction
Adolescence is a special phase of life in which complex developmental tasks, such as forming relationships with peers or personality development, have to be mastered (; ). In adolescence, the complexity of social interactions increases and belonging to a peer group becomes increasingly important (). Since adolescents spend almost one-third of their time at school, it has an important influence on their development of close social relationships and personality functioning through interaction with their peers (; ). According to , continuous interactions exist between personality and social relationships. Both have a significant influence on the successful accomplishment of developmental tasks as well as on adolescents’ mental health (). Therefore, it is important to take a closer look at both constructs and their dynamic development during adolescence. Further, meaningful social relationships with peers are discussed as a key issue for successful inclusive educational settings because students with special educational needs (SEN) are often reported to experience difficulties in participating fully in regular education settings (; ). Studies involving adolescents with SEN, especially in the area of social–emotional development (SED), found that they feel less socially integrated in the social processes of their class compared to their peers without SEN (; ; ). Hence, it is essential to investigate the association between social relationships and personality development in inclusive classrooms. In our study, we focus on students with SEN learning (L) and SED, as these special needs are the most prevalent in Germany []. Students with SEN L are characterized by showing patterns of thinking and learning that can lead to disorientation when encountering and dealing with school learning objects. Students with SEN SED are characterized by difficulties in emotional and social development, cooperation, attention, and self-regulation (ibid). In contrast to the majority of previous research on this topic, in the present study, we investigate the association between self-perceived social relationships and personality functioning from the perspective of adolescents themselves. Furthermore, we examine whether students with SEN L and SED have different developmental trajectories of personality functions compared to students without SEN. Finally, we investigate whether SEN L and SED reinforces the influence of students’ self-perception of their social relationships on personality functioning.
2 Inclusive education
In 2009, Germany ratified the UN Convention and committed to enable students with different social backgrounds, intellectual abilities, and developmental requirements to participate in mainstream classrooms as comprehensively as possible. The Standing Conference of the Ministers of Education and Cultural Affairs in Germany (KMK) has determined SEN in the domains of learning, social–emotional, language, sight, hearing, intellectual, and physical and motor skills development. In 2020, around 582,400 students with SEN were taught in Germany of which almost 255,000 attended inclusive mainstream schools. Of the total SEN, 57% was allocated to the domain of L and SED []. The shift to inclusive education aimed to forgo assessment procedures in order to avoid labelling or stigmatization, and to provide additional support for all students who need it (Vroey et al., 2016). However, in Germany, the allocation of staff and finances is partly linked to the number of students formally identified with SEN. Thus, the diagnostic process is not yet completely abandoned [], as for example in the USA or Norway (Bossaert et al., 2015). For the schools investigated, where students with and without SEN learned together in one and the same classroom, psychometric diagnoses were not mandatory.
3 Theoretical and empirical background
According to , a persons’ personality is generally understood as the totality of all personality traits. In the course of personality development, there are dynamic interactions between personality and genetic influences on the one hand and personality and environmental influences on the other hand (). Thus, personality development is sensitive to social environmental influences (). Social relationships, such as those of an adolescent to his or her peers, can be considered a special form of the social environment (; ). According to the dynamic-interactionist paradigm, continuous interactions exist between social relationships and personality (). Such special interactions over time are also known as dynamic personality-relationship-transactions (see Figure 1). Dynamic transactions lead to a fit between personality and social relationships ().
Figure 1
Several studies investigating personality-relationship transactions (e.g.,
3.1 Personality functioning
Adolescence is a sensitive phase of personality development, as a variety of physical, psychological, and social developmental tasks have to be mastered (
Figure 2

The global dimension, areas, and domains of personality functioning.
Studies (e.g.,
3.2 Influencing factors on personality functioning: students’ self-perception of social relationships and special educational needs
School is a central place for building social relationships and personal competences (
Studies on students’ self-perception of their social relationships in inclusive learning settings have indicated that students with SEN perceive their peer relationships more negatively and feel less integrated in the social processes of their class compared to their peers without SEN (
4 Research questions and hypotheses
Overall, research provides evidence that negative social relationship experiences and SEN, especially in the domain of SED, can be considered as risk factors for the development of healthy personality functioning (
H1a: Students’ self-perception of their social relationships at the beginning of the school year (t1) is positively related to students’ personality functioning at the end of the school year (t2). This means that students who have a more positive self-perception of their social relationships at the beginning of the school year have healthier personality functioning at the end of the school year.
H1b: Students’ self-perception of their social relationships at t1 predicts positive changes in personality functioning over time: Students with higher self-perception of their social relationships have a stronger increase in healthy personality functioning over time compared to students with lower self-perception of their social relationships.
Studies have, moreover, indicated that children and adolescents with attention or behavior deficits were more likely to develop a personality disorder, i.e., lower personality functioning (
H2a: SEN L at t1 is negatively related to students’ personality functioning at t2. This means that students with SEN L have a less healthy level of personality functioning than students without SEN.
H2b: SEN L at t1 predicts negative changes in students’ personality functioning over time: Students with SEN L have a decrease in healthy personality functioning over time compared to students without SEN.
H3a: SEN SED at t1 is negatively related to students’ personality functioning at t2, meaning that students with SEN SED have a less healthy level of personality functioning than students without SEN.
H3b: SEN SED at t1 predicts negative changes in students’ personality functioning over time: Students with SEN SED have a decrease in healthy personality functioning over time compared to students without SEN.
H4: SEN L reinforces the association of students’ self-perception of their social relationships at t1 and personality functioning at t2.
H5: SEN SED reinforces the association of students’ self-perception of their social relationships at t1 and personality functioning at t2.
Thus, H4 and H5 assume that for students with SEN L or SED, the relations between lower social self-perception and riskier levels of personality functioning is stronger.
With regard to the four domains of personality functioning (identity, self-direction, empathy, and intimacy), we generally assume similar patterns of impact.
5 Materials and methods
5.1 Sample and design
The present study is part of a longitudinal project on inclusive education in the federal state of Brandenburg in Germany, conducted between 2018–2020 (
At the beginning of the study, we selected 52 schools using a stratified random sample from a total population of 184 project schools. For the present study we focused on adolescents. Consequently, we drew on information from about N = 927 students in 20 sixth- and 20 seventh-grade classes. In the federal state of Brandenburg, primary school comprises grade one to six, secondary school starts with grade seven. Our sample consisted of 449 (48.4%) sixth-graders of primary schools and 478 (51.6%) seventh-graders of comprehensive schools. Sixth-graders were on average 11.8 years (SD = 0.56) old of which 218 identified as female (48.6%) and 222 (49.4%) as male. Seventh-graders were on average 13 years (SD = 0.61) old with 213 female (44.6%) and 258 (54.0%) male students. Information on gender was missing for 16 students (1.7%). As psychometric diagnoses were non-obligatory, classroom teachers provided information whether a student had a formally diagnosed or suspected SEN in the one or more of the following domains: learning, social–emotional, language, sight, hearing, intellectual as well as motor skills and physical development (see Table 1). In grade six 68 (15.1%) students had a suspected or formally diagnosed SEN in one of the domains, 31 (6.9%) had SEN L and 27 (6.0%) SEN SED. In grade seven 130 (27.2%) students had a suspected or formally diagnosed SEN in one of the domains, 52 (10.9%) had SEN L and 61 (12.8%) SEN SED. Twelve (1.3%) students were suspected or diagnosed with both SEN L and SED.
Table 1
| SEN learning | SEN SED | SEN language | SEN sight | SEN hearing | SEN ID | SEN PD | |
|---|---|---|---|---|---|---|---|
| Sixth-graders (N = 449) | 31 | 27 | 9 | 2 | 3 | 6 | 3 |
| Seventh-graders (N = 478) | 52 | 61 | 22 | 2 | 3 | 7 | 10 |
Distribution of the special educational needs mentioned.
SED = Social–emotional development, PD = Physical and motor skills development, ID = Intellectual development. Multiple answers were possible.
5.2 Data collection
The data was collected in school year 2018/2019, in November 2018 (t1) and June 2019 (t2) in whole-class arrangements by trained test administrators. For students with SEN, alterations were administered when needed (additional time, personal assistant, or larger prints). The survey instruments and data collection were approved by the data protection officer of the Ministry of Education. Due to the project was issued by the Ministry of Education, participation was mandatory for classes and teachers. However, students’ participation was voluntary and they could either opt out of taking part at all or stop answering the questionnaire at any time. Parents were informed about the context and content of the survey. They were also informed that their children could stop participating in the survey process at any time.
5.3 Instruments
5.3.1 Demographic data
We asked teachers at t1 to indicate students’ date of birth and gender, recoded into 0 for girls and 1 for boys. Parents information on their educational and occupational levels were used to calculate the international socio-economic index of occupational status (ISEI,
5.3.2 Special educational need
We obtained information on students’ SEN status through classroom teachers who indicated students with a formally or suspected SEN diagnosis. For each domain, answers were coded with 0 (no SEN) or 1 (SEN). As for schools investigated psychometric diagnoses were not mandatory, we have grouped students with formally diagnosed and suspected SEN together in order to include all students with SEN and not miss anyone. While Table 1 includes the number of students with formally diagnosed or suspected SEN in all domains, the Ministry of Education of the federal state of Brandenburg focuses on the inclusion of students with SEN in the domains of learning, social–emotional development, and language (
5.3.3 Students’ self-perception of their social relationships
Students’ social self-perception within their class was measured at both measurement points on a four-point Likert scale consisting of six items adapted from
5.3.4 Personality functioning
In order to operationalize personality functioning, the Level of Personality Functioning Questionnaire Screening version (LoPF-Q Screener;
5.4 Statistical procedure
All analyses were performed using SPSS (Version 28, IBM Corp., 2021) and R (Version 4.1.3, R Core Team, 2022) software packages. Students were clustered in classes and we accounted for the resulting non-independence of observations drawing on multilevel modelling techniques (
6 Results
6.1 Descriptive summary of at-risk personality functioning
Table 2 provides an overview of the means (M) and standard deviations (SD) for all students as well as for the subgroups of students with SEN L and SED, separately for grades six and seven. In both grades, students with SEN SED had higher at-risk personality functioning compared to all students and those with SEN L. Sixth-graders with SEN SED had higher LoPF scores than seventh-graders with SEN SED, implying a higher level of at-risk personality functioning. With regard to all students and those with SEN L seventh-graders had higher LoPF scores than sixth-graders.
Table 3 shows the correlations between self-perception of social relationships and the LoPF total score as well as with the four domains. In both grades, significant negative correlations between self-perception of social relationships and at-risk personality functioning were found. However, the strength of correlations does not indicate a conceptual overlap of the constructs (see Table 3).
Table 2
| Sixth-graders | ||||
|---|---|---|---|---|
| All students (N = 449) M (SD) | SEN L (N = 31) M (SD) | SEN SED (N = 27) M (SD) | ||
| t1 | Total score | 1.26 (0.71) | 1.41 (0.80) | 1.82 (0.68) |
| Difficulties with identity | 1.13 (0.82) | 1.34 (0.83) | 1.63 (0.83) | |
| Difficulties with self-direction | 1.18 (0.86) | 1.37 (1.06) | 1.79 (0.92) | |
| Difficulties with empathy | 1.36 (0.75) | 1.43 (0.77) | 1.91 (0.74) | |
| Difficulty with intimacy | 1.38 (0.85) | 1.49 (1.01) | 1.94 (0.81) | |
| t2 | Total score | 1.25 (0.71) | 1.35 (0.74) | 1.66 (0.75) |
| Difficulties with identity | 1.09 (0.78) | 1.16 (0.91) | 1.43 (0.81) | |
| Difficulties with self-direction | 1.15 (0.83) | 1.25 (0.90) | 1.59 (0.82) | |
| Difficulties with empathy | 1.37 (0.78) | 1.46 (0.80) | 1.72 (0.88) | |
| Difficulties with intimacy | 1.41 (0.87) | 1.54 (0.89) | 1.93 (0.89) | |
| Seventh-graders | ||||
|---|---|---|---|---|
| All students (N = 478) M (SD) | SEN L (N = 52) M (SD) | SEN SED (N = 61) M (SD) | ||
| t1 | Total score | 1.34 (0.71) | 1.48 (0.80) | 1.63 (0.60) |
| Difficulties with identity | 1.21 (0.80) | 1.40 (0.95) | 1.37 (0.82) | |
| Difficulties with self-direction | 1.30 (0.90) | 1.47 (1.02) | 1.59 (0.85) | |
| Difficulties with empathy | 1.46 (0.75) | 1.47 (0.85) | 1.88 (0.67) | |
| Difficulties with intimacy | 1.42 (0.83) | 1.59 (0.88) | 1.69 (0.67) | |
| t2 | Total score | 1.39 (0.76) | 1.42 (0.84) | 1.49 (0.66) |
| Difficulties with identity | 1.27 (0.84) | 1.32 (0.85) | 1.34 (0.81) | |
| Difficulties with self-direction | 1.33 (0.95) | 1.24 (1.07) | 1.41 (0.92) | |
| Difficulties with empathy | 1.46 (0.78) | 1.42 (0.91) | 1.62 (0.67) | |
| Difficulties with intimacy | 1.52 (0.89) | 1.67 (0.95) | 1.59 (0.65) | |
Descriptive statistics of the total score and the four domains of at-risk personality functioning.
Ratings were made on a five-point Likert scale (0–4) and then aggregated to a mean score per scale. Higher scores indicate a lower level of personality functioning.
Table 3
| Sixth-graders | Seventh-graders | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Variable | 1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 5 |
| 1 Self-perception of social relationships | ||||||||||
| 2 LoPF total score | −0.39* | −0.26* | ||||||||
| 3 Difficulties with identity | −0.38* | 0.86* | −0.18* | 0.87* | ||||||
| 4 Difficulties with self-direction | −0.32* | 0.90* | 0.74* | −0.22* | 0.90* | 0.76* | ||||
| 5 Difficulties with empathy | −0.31* | 0.84* | 0.57* | 0.68* | −0.27* | 0.84* | 0.60* | 0.69* | ||
| 6 Difficulties with intimacy | −0.37* | 0.90* | 0.69* | 0.74* | 0.69* | −0.26* | 0.88* | 0.69* | 0.70* | 0.70* |
Correlations for sixth-graders and seventh-graders.
* p < 0.05.
6.2 Results for predicting the total score of at-risk personality functioning
With regard to hypotheses 1a and 1b, in model 1 personality functioning was regressed on control variables, time, students’ self-perception of social relationships, and the interaction of time and social self-perception (see Tables 4, 5). For sixth-graders, we found no significant influence of the control variables (p > 0.05). But results indicate a significant negative influence of students’ self-perception of social relationships on at-risk personality functioning (b = −0.65, p < 0.001). That is, students who felt more integrated within the class had lower LoPF scores and, therefore, a higher level of personality functioning and less risky personality functioning. Additionally, we found a significant positive influence of students’ self-perception of social relationships on the change in personality functioning (b = 0.20, p = 0.001). Figure 3 shows that students with higher self-perception of their social relationships (+1 SD) had an increase of at-risk personality functioning (decrease of personality functioning) over time compared to students with lower self-perception of their social relationships (−1 SD). Note that the opposite direction of influence was assumed.
Table 4
| Model 0 | Model 1 | Modell 2a | Model 2b | Model 3 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| b | SE | b | SE | b | SE | b | SE | b | SE | |
| Constant | 1.26 | 0.03 | 1.21 | 0.04 | 1.17 | 0.04 | 1.19 | 0.04 | 1.10 | 0.05 |
| Control variables | ||||||||||
| Age | −0.04 | 0.06 | −0.08 | 0.07 | −0.07 | 0.07 | −0.07 | 0.07 | ||
| Gender | 0.09 | 0.06 | 0.04 | 0.06 | 0.06 | 0.06 | 0.05 | 0.06 | ||
| HISEI | −0.00 | 0.00 | −0.00 | 0.00 | −0.00 | 0.00 | −0.00 | 0.00 | ||
| Predictors | ||||||||||
| Time | 0.02 | 0.03 | 0.02 | 0.04 | 0.02 | 0.04 | 0.12* | 0.05 | ||
| Self-perception of social relationships | −0.65* | 0.06 | −0.71* | 0.07 | −0.64* | 0.06 | −0.75* | 0.08 | ||
| SEN L | 0.07 | 0.15 | −0.44 | 0.55 | ||||||
| SEN SED | 0.49* | 0.16 | −0.60 | 0.78 | ||||||
| Self-perception of social relationships*Time | 0.20* | 0.06 | 0.27* | 0.07 | 0.18* | 0.06 | 0.26* | 0.07 | ||
| SEN L*Time | 0.13 | 0.15 | 0.63 | 0.53 | ||||||
| SEN SED*Time | −0.08 | 0.16 | 0.91 | 0.78 | ||||||
| Moderations | ||||||||||
| Self-perception of social relationships*SEN L | 0.56 | 0.93 | ||||||||
| Self-perception of social relationships*SEN SED | −1.26 | 1.31 | ||||||||
| ICC (class level) | 0.06 | |||||||||
| ICC (student level) | 0.52 | 0.54 | 0.53 | 0.52 | 0.53 | |||||
| Explained inter-individual variance in % | 6.28 | 14.35 | 15.25 | 17.49 | ||||||
| Explained intra-individual variance in % | 66.86 | 67.61 | 67.42 | 69.32 | ||||||
Results for predicting the total score of at-risk personality functioning for sixth-graders.
Longitudinal multilevel hierarchical regression analysis; Time = change from t1 to t2; *p < 0.05.
Table 5
| Model 0 | Model 1 | Modell 2a | Model2b | Model 3 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| b | SE | b | SE | b | SE | b | SE | b | SE | |
| Constant | 1.37 | 0.03 | 1.33 | 0.04 | 1.29 | 0.04 | 1.32 | 0.04 | 1.32 | 0.09 |
| Control variables | ||||||||||
| Age | 0.07 | 0.06 | 0.04 | 0.07 | 0.10 | 0.07 | 0.09 | 0.07 | ||
| Gender | −0.21* | 0.07 | −0.24* | 0.08 | −0.29* | 0.07 | −0.28* | 0.08 | ||
| HISEI | −0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ||
| Predictors | ||||||||||
| Time | 0.02 | 0.04 | 0.03 | 0.04 | 0.01 | 0.04 | −0.06 | 0.08 | ||
| Self-perception of social relationships | −0.45* | 0.07 | −0.42* | 0.08 | −0.45* | 0.08 | −0.25 | 0.17 | ||
| SEN L | 0.21 | 0.14 | −0.65 | 0.51 | ||||||
| SEN SED | 0.38* | 0.13 | 0.84 | 0.50 | ||||||
| Self-perception of social relationships*Time | 0.06 | 0.07 | −0.06 | 0.07 | 0.04 | 0.07 | −0.03 | 0.08 | ||
| SEN L*Time | −0.28* | 0.12 | −0.19 | 0.46 | ||||||
| SEN SED*Time | −0.29* | 0.12 | −0.63 | 0.44 | ||||||
| Moderations | ||||||||||
| Self-perception of social relationships*SEN L | 1.42 | 0.99 | ||||||||
| Self-perception of social relationships*SEN SED | 0.26 | 0.97 | ||||||||
| ICC (class level) | 0.04 | |||||||||
| ICC (student level) | 0.50 | 0.61 | 0.63 | 0.61 | 0.61 | |||||
| Explained inter-individual variance in % | 13.06 | 16.33 | 4.08 | 5.71 | ||||||
| Explained intra-individual variance in % | 26.56 | 29.46 | 32.78 | 31.54 | ||||||
Results for predicting the total score of at-risk personality functioning for seventh-graders.
Longitudinal multilevel hierarchical regression analysis; Time = change from t1 to t2; *p < 0.05.
Figure 3

The influence of sixth-graders’ self-perception of social relationships on the change in at-risk personality functioning.
For seventh-graders, model 1 shows a significant negative influence of the control variable gender (b = −0.21, p = 0.003). Thus, girls had significant higher LoPF scores than boys, implying a riskier personality functioning. Similar to sixth-graders, results indicate a significant negative influence of seventh-graders’ self-perception of social relationships on at-risk personality functioning (b = −0.45, p < 0.001). But we found no significant influence of students’ self-perception of social relationships on the change in personality functioning (p > 0.05).
For both grades, these findings support hypothesis 1a, but not hypothesis 1b because for seventh-graders we found no change over time in at-risk personality functioning and in grade six we found the opposite direction of change than assumed.
To test hypotheses 2a and 2b, in model 2a the level of personality functioning was additionally regressed on students’ SEN L. For both grades, SEN L had no significant effect on personality functioning (p < 0.05). But for seventh-graders SEN L had a negative influence on the change in personality functioning (b = −0.28, p = 0.025). This negative interaction indicates that students with SEN L showed a decrease in the LoPF scores over time (increased level of personality functioning and less risky personality development). While for students without SEN, LoPF scores increased. Thus, the differences between the two groups decreased over time. Therefore, hypotheses 2a and 2b have to be rejected as the opposite direction of change was hypothesized.
With regard to hypotheses 3a and 3b, in model 2b the level of personality functioning was regressed on SEN SED. For both grades, we found a significant positive influence of SEN SED on at-risk personality functioning (b = 0.49, p = 0.002; b = 0.38, p = 0.003). That is, students with SEN SED reported significantly higher LoPF scores (lower level of personality functioning) than their classmates without SEN. Additionally, in grade seven results indicate a significant negative influence of SEN SED on the change in personality functioning over time (b = −0.29, p = 0.014), which indicates that students with SEN SED showed a decrease in LoPF scores (increased level of personality functioning and less risky personality development) over time compared to students without SEN who showed an increase in LoPF scores. Thus, the differences between the two groups decreased over time. Hence, hypothesis 3a can be supported, but not hypothesis 3b because for sixth-graders we found no change over time, and for seventh-graders we found the opposite direction of change than was assumed.
In a last step (model 3) to test hypotheses 4 and 5, moderations between students’ self-perception of their social relationships and SEN L and SED were additionally examined. Therefore, personality functioning was regressed on the interactions of students’ self-perception of their social relationships and students’ SEN. For both grades, there was no significant moderation effect neither for students’ self-perception of their social relationships and SEN L (p > 0.05) nor for students’ self-perception of their social relationships and SEN SED (p > 0.05). SEN L and SED did not strengthen the influence of students’ self-perception of their social relationships on personality functioning. Therefore, hypotheses 4 and 5 are rejected. Remarkably, in grade six, this model revealed a significant positive change of time (b = 0.12, p = 0.014), indicating a decreased level of healthy personality functioning. SEN SED no longer appeared to have a significant influence (p > 0.05). But the negative influence of students’ self-perception of social relationships on at-risk personality functioning and the positive influence of students’ self-perception of social relationships on the change in at-risk personality functioning over time remained stable. This result once again supports hypothesis 1a for sixth-graders. In grade seven, however, students’ self-perception of social relationships no longer appeared to have a significant influence (p > 0.05). Only gender was found to have a significant influence on personality functioning: Girls had a significant lower level of personality functioning and, therefore, a riskier personality functioning than boys.
6.3 Results for predicting domains of at-risk personality functioning
To take a detailed look at the four different domains of at-risk personality functioning, the same sequence of models (model 0–3) was run for difficulties with identity, self-direction, empathy, and intimacy, again separately for grade six and seven. Overall, analyses for the four specific domains revealed similar patterns of findings to the total LoPF score.
In both grades analyses revealed a significant negative influence of students’ self-perception of social relationships on all four domains of personality functioning. These results once again support hypothesis 1a. As for the total score, we found no significant influence of seventh-graders’ self-perception of social relationships on changes in the four domains. In contrast, there was a significant positive influence of sixth-graders’ self-perception of social relationships on the change in identity, self-direction, empathy, and intimacy. However, the opposite direction of change was expected, which again contradicts hypothesis 1b.
As it was shown for the total score, SEN L had no significant effect on the domains of at-risk personality functioning in both grades, which supports the rejection of hypothesis 2a. In contrast to the total score, but in line with hypothesis 2b, results of sixth-graders indicate a significant positive influence of SEN L on the change in self-direction over time (b = 1.40, p = 0.047). This positive interaction means that six-graders with SEN L showed a riskier development of self-direction compared to students without SEN. This result supports hypothesis 2b. However, for seventh-graders, SEN L had a negative influence on the change in identity (b = −0.35, p = 0.026) and self-direction (b = −0.46, p = 0.007). This indicates that seventh-graders with SEN L showed a decrease in difficulties with identity and self-direction (increased level of healthy identity and self-direction) compared to students without SEN. This is in line with the total score, but contrary to hypothesis 2b.
Also in line with the total score, students of both grades with SEN SED reported significantly higher difficulties in all four domains and, thus, lower levels of healthy identity, self-direction, empathy, and intimacy compared to students without SEN. These results once again support hypothesis 3a. For seventh-graders, results indicate a significant negative influence of SEN SED on the change in identity, self-direction, and empathy over time. These negative interactions indicate that students with SEN SED showed a less risky development of identity, self-direction, and empathy compared to students without SEN. Again, these results oppose hypothesis 3b. For sixth-graders, hypothesis 3b is also rejected, as we did not find any effect of SEN on change in any of the domains.
For both grades, we found no significant moderation effects on difficulties in the domains of personality functioning, neither for students’ self-perception of their social relationships with SEN L nor with SEN SED. In line with the total score, hypotheses 4 and 5 have to be rejected.
7 Discussion
7.1 Summary of results
The aim of the present study was to investigate how students’ self-perception of their social relationships in class affects the development of personality functioning in adolescence. Furthermore, we examined whether special educational needs in the domains of learning (SEN L) and social–emotional development (SED) led to differential developmental trajectories of personality functioning compared to students without SEN. Finally, we investigated whether students’ SEN moderates the influence of students’ self-perception of their social relationships on personality functioning.
Overall seventh-graders who had recently made the transition from primary to secondary school showed higher at-risk personality functioning than sixth-graders. Moreover, in grade seven, students’ gender was found to be a significant predictor influencing the level of personality functioning. Compared to boys, girls had a lower level of healthy personality functioning. This was reflected in higher scores in at-risk personality functioning in the total score and the domains self-direction, identity, and intimacy.
With regard to the first research question, analyses of sixth- and seventh-graders revealed that students’ self-perception of their social relationships predicts the total score of personality functioning and, moreover, the four domains identity, self-direction, empathy, and intimacy. We can, thus state, that students who perceived their social relationships within the class more positively had a healthier perception of their own personality functioning (lower at-risk personality functioning). Therefore, our findings support the dynamic personality-relationship-transaction model by
In terms of the second research question, in both grades analyses revealed that students with SEN SED had a significantly lower level of healthy personality functioning as well as identity, self-direction, empathy, and intimacy. These findings are in line with prior research by
Contrary to our last hypotheses, we found no significant moderation effects, neither in grade six nor in grade seven. It was assumed that personal characteristics, such as developmental difficulties in school, and their social relationships have combined effects on personality development as previous studies have shown (e.g.,
Nevertheless, our study extends previous research on personality functioning in adolescents by focusing on the influence of students’ self-perception of their social relationships on personality functioning in the context of primary and secondary inclusive educational settings.
7.2 Limitations and future prospects
This study has, however, limitations that should not go unnoticed. A first constraint relates to the measurement of students’ SEN. Classroom teachers were asked to provide information whether a student had a formally diagnosed or suspected SEN. We have no information about the psychometric quality of teachers’ assessments of suspected SEN. Moreover, by combining formally diagnosed and suspected SEN, the proportion slightly exceeds the prevalence of SEN diagnoses in the German population [
A second constraint relates to the assessment of social relationships. In the present study, students’ self-perception of their social relationships within the class was assessed. Thus, social relationships with other adolescents outside the class were not considered. In adolescence, other peers are certainly relevant for personality development, for instance friends from sports clubs or neighborhood. For example,
Third, the LoPF-Q Screener is an instrument for detecting clinically relevant difficulties in personality functioning in order to inform diagnostic decision making towards personality disorders at an early stage of development in adolescents. However, the LoPF-Q is merely a screening instrument for self-report and additional diagnostics including different sources would have been needed to clarify whether a personality disorder was present or not. But this was not part of the research project and the identification of students who showed elevated scores in at-risk personality functioning would have violated the project’s anonymization policy. Nevertheless, the LoPF-Q Screener can be useful for assessing personality functioning that are relevant in the developmental period of adolescence.
And finally, the last limitation relates our number of measurement points. Students’ ratings were assessed at the beginning and the end of one school year. Referring to the variable time, no significant changes in personality functioning (except model 3 for sixth-graders) had emerged during this short time span. A longer time interval between time points or the addition of more measurement points would be beneficial.
7.3 Implications and conclusion
The findings revealed that the total score as well as the domains of personality functioning primarily depend on students’ self-perception of their social relationships in class. Moreover, students with SEN SED showed lower levels of the personality functioning. Students with SEN SED, therefore, appear to require special support in order to achieve healthy personal development in inclusive education. However, differences between students with SEN and without SEN decreased over the course of grade seven, but not grade six. These results underline the importance of positively perceived social interactions of all students in an inclusive learning environment, especially in primary school. Otherwise, risky personality development may be a consequence. The results stress the need to foster positive classroom-based social processes. Supporting the social competences of all students as well as promoting prosocial behavior of students with SEN SED seems to be an essential but challenging task for teachers. To promote their students’ social competences and prosocial behavior, one option might be to integrate a social skills training into their curricula (e.g.,
Taken together, the need to belong to a peer group becomes increasingly important as students grow older as well as in the context of normative transitions (
Statements
Data availability statement
The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation.
Ethics statement
The study involving humans was approved by the Ethics Committee of the Ministry of Education, Youth, and Sports of the federal state of Brandenburg, Heinrich-Mann-Allee 107, 14473 Potsdam, Germany. The study was conducted in accordance with local legislation and institutional requirements. ‘Written informed consent for participation was not required from the participants or the participants’ legal guardians/next of kin in accordance with §1(2) of the Ordinance on the Approval of Scientific Studies in Schools of June 15, 2018, of the Brandenburg School Act, decreed by the Minister of Education, Youth and Sport.
Author contributions
AH: Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Validation, Visualization, Writing – original draft, Writing – review & editing. MK: Conceptualization, Investigation, Project administration, Validation, Writing – review & editing. JL: Conceptualization, Investigation, Project administration, Validation, Writing – review & editing, Data curation. AE: Investigation, Project administration, Validation, Writing – review & editing. KG: Writing – review & editing. NS: Conceptualization, Funding acquisition, Investigation, Project administration, Resources, Supervision, Validation, Writing – review & editing.
Funding
The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was supported by the Ministry of Education of the federal state of Brandenburg, Germany. The authors are responsible for the content of this publication. This article processing charge was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – 491466077 and the Publication Fund of University Potsdam.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
Supplementary material
The Supplementary material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fpsyg.2024.1279623/full#supplementary-material
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Summary
Keywords
social relationships, personality functioning, self-perception, adolescents, special educational needs, inclusion
Citation
Hartmann A, Knigge M, Lenkeit J, Ehlert A, Goth K and Spörer N (2024) The influence of adolescents’ self-perception of social relationships on personality functioning in the context of inclusive education. Front. Psychol. 15:1279623. doi: 10.3389/fpsyg.2024.1279623
Received
18 August 2023
Accepted
15 February 2024
Published
01 August 2024
Volume
15 - 2024
Edited by
Roseli Rodrigues De Mello, Federal University of São Carlos, Brazil
Reviewed by
Ada H. Zohar, Ruppin Academic Center, Israel
Kai Nagase, Yamaguchi Prefectural University, Japan
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© 2024 Hartmann, Knigge, Lenkeit, Ehlert, Goth and Spörer.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Anne Hartmann, annehartmann@uni-potsdam.de
†ORCID: Anne Hartmann, orcid.org/0000-0003-4855-6449
Disclaimer
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.