TY - JOUR
T1 - Designing a brief measure of social anxiety
T2 - Psychometric support for a three-item version of the Interaction Anxiousness Scale (IAS-3)
AU - Nichols, Austin Lee
AU - Webster, Gregory D.
N1 - Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - Although social situations are enjoyable for most people, they cause extreme anxiety in others. To better understand individual differences in social anxiety, researchers have designed scales, such as the 15-item Interaction Anxiousness Scale (IAS; Leary, 1983), to measure people's anxiousness in social situations. Despite the importance of measuring social anxiety, many research settings that require time or space constraints (e.g., field, longitudinal, daily diary studies) cannot always accommodate a 15-item scale. To address this problem, the current research aimed to create and validate a three-item version of the IAS. Studies examined the psychometric properties of a three-item measure of social anxiety (IAS-3). After choosing the best three items using item response theory methods (Study 1), we examined the IAS-3's (a) concurrent validity with the 15-item IAS in a student sample (Studies 1 and 2), (b) test-retest reliability across 4. months (Study 2), and (c) construct validity in a diverse international sample (Studies 3 and 4). Across all studies, the IAS-3 showed good reliability and validity, supporting its use in future research.
AB - Although social situations are enjoyable for most people, they cause extreme anxiety in others. To better understand individual differences in social anxiety, researchers have designed scales, such as the 15-item Interaction Anxiousness Scale (IAS; Leary, 1983), to measure people's anxiousness in social situations. Despite the importance of measuring social anxiety, many research settings that require time or space constraints (e.g., field, longitudinal, daily diary studies) cannot always accommodate a 15-item scale. To address this problem, the current research aimed to create and validate a three-item version of the IAS. Studies examined the psychometric properties of a three-item measure of social anxiety (IAS-3). After choosing the best three items using item response theory methods (Study 1), we examined the IAS-3's (a) concurrent validity with the 15-item IAS in a student sample (Studies 1 and 2), (b) test-retest reliability across 4. months (Study 2), and (c) construct validity in a diverse international sample (Studies 3 and 4). Across all studies, the IAS-3 showed good reliability and validity, supporting its use in future research.
KW - Brief measure
KW - Individual differences
KW - Interaction Anxiousness Scale
KW - Item response theory
KW - Measurement
KW - Personality
KW - Social anxiety
UR - http://www.scopus.com/inward/record.url?scp=84923065762&partnerID=8YFLogxK
U2 - 10.1016/j.paid.2015.01.043
DO - 10.1016/j.paid.2015.01.043
M3 - Article
AN - SCOPUS:84923065762
SN - 0191-8869
VL - 79
SP - 110
EP - 115
JO - Personality and Individual Differences
JF - Personality and Individual Differences
ER -