Name of scale/means of assessment	Abbreviation	Clinician‐rated (CR)/self‐rated (SR)	Study
Borderline Personality Disorder Severity Index ‐ 4th Edition, affective instability	BPDSI‐IV, affective instability	CR	Bellino 2010; Kamalabadi 2012; Leppänen 2016
Borderline Personality Disorder Severity Index ‐ 4th Edition for adolescents, affective instability	BPDSI‐IV‐adol, affective instability	CR	Schuppert 2012
Clinical Global Impression scale for Borderline Personality Disorder patients, affective instability	CGI‐BPD, affective instability	CR	Amianto 2011; Soler 2009
Revised Diagnostic Interview for Borderlines, Affect subscale	DIB‐R, Affect subscale	CR	Farrell 2009
Difficulties in Emotion Regulation Scale, Total score	DERS, Total score	SR	Bianchini 2019; Gratz 2006; Gratz 2014; McMain 2017; Morton 2012
Personality Assessment Inventory, affective instability	PAI‐BOR‐A, affective instability	SR	Morey 2010
Strengths and Difficulties Questionnaire, emotional problems	SDQ, emotional problems	SR	Salzer 2014
Zanarini Rating Scale for Borderline Personality Disorder, affective instability	ZAN‐BPD, affective instability	CR	Blum 2008; Reneses 2013; Zanarini 2018