Original Research ARTICLE
Assessment of affect lability: psychometric properties of the ALS-18
- 1Università Europea di Roma, Italy
- 2Università degli Studi Guglielmo Marconi, Italy
- 3Università degli Studi G. d'Annunzio Chieti e Pescara, Italy
- 4Dipartimento di Neuroscienze Salute Mentale e Organi di Senso, Università degli Studi di Roma La Sapienza, Italy
Affect lability, an important aspect of emotion dysregulation, characterizes several psychiatric conditions. The short Affective Lability Scales (ALS-18) measures three aspects of changeability between euthymia and affect states (Anxiety/Depression, AD; Depression/Elation, DE; and Anger, Ang). The aim of our study was to investigate the psychometric characteristics of an Italian version of the ALS-18 in a sample of adults recruited from the general population. The sample was composed of 494 adults (343 women and 151 men) aged 18 and higher (mean age = 31.73 years, SD = 12.6). All participants were administered a checklist assessing socio-demographic variables, the ALS-18 and measures of depression and difficulties in emotion regulation. Confirmatory factor analyses indicated adequate fit of the three-factor model (RMSEA = 0.061, 95% CI = 0.054/0.069; CFI = 0.99; SRMR = 0.055), and the presence of a higher-order general factor. Internal consistency was satisfactory for all the lower-order dimensions and the general factor (ordinal α > 0.70). The ALS-18 was significantly associated with concurrent measures of depression and difficulties in emotion regulation. These findings indicate that the ALS-18 is a valid and reliable instrument for measuring affect lability, although discriminant validity of subdimensions scores could be problematic.
Keywords: Affect lability, Emotion dysregulation, Affective Lability Scales (ALS-18), Psychometric prosperties of ALS-18, Validity and Reliability of ALS-18
Received: 02 Feb 2018;
Accepted: 14 Mar 2018.
Edited by:Pietro Cipresso, Istituto Auxologico Italiano (IRCCS), Italy
Reviewed by:Marco Lauriola, Sapienza Università di Roma, Italy
Dejan Stevanovic, Clinic for Neurology and Psychiatry for Children and Youth, Serbia
Elisa Pedroli, Istituto Auxologico Italiano (IRCCS), Italy
Copyright: © 2018 Contardi, Imperatori, Amati, Balsamo and Innamorati. 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 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: Dr. Anna Contardi, Università Europea di Roma, Roma, Italy, firstname.lastname@example.org