title: The Social Interaction Anxiety Scale (SIAS) and the Social Phobia Scale (SPS): a comparison of two short-form versions.
abstract: The widespread use of Mattick and Clarke's (1998) Social Interaction Anxiety Scale (SIAS) and Social Phobia Scale (SPS) led 2 independent groups of researchers to develop short forms of these measures (Fergus, Valentiner, McGrath, Gier-Lonsway, & Kim, 2012; Peters, Sunderland, Andrews, Rapee, & Mattick, 2012). This 3-part study examined the psychometric properties of Fergus et al.'s and Peters et al.'s short forms of the SIAS and SPS using an American nonclinical adolescent sample in Study 1 (N = 98), American patient sample with an anxiety disorder in Study 2 (N = 117), and both a South Korean college student sample (N = 341) and an American college student sample (N = 550) in Study 3. Scores on both sets of short forms evidenced adequate internal consistency, interitem correlations, and measurement invariance. Scores on Fergus et al.'s short forms, particularly their SIAS short form, tended to capture more unique variance in scores of criterion measures than did scores on Peters et al.'s short forms. Implications for the use of these 2 sets of short forms are discussed.
authors: Department of Psychology and Neuroscience.
authors: Thomas A
authors: 0000-0002-1675-2974
authors: TA
authors: Fergus
authors: Department of Psychology, Northern Illinois University.
authors: David P
authors: 0000-0003-2016-5534
authors: DP
authors: Valentiner
authors: Department of Child Psychotherapy, Hanyang University.
authors: Hyun-Soo
authors: HS
authors: Kim
authors: Center for Anxiety and Obsessive Compulsive Disorders, Alexian Brothers Behavioral Health Hospital.
authors: Patrick B
authors: PB
authors: McGrath
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001008:Anxiety Disorders / Q000175:diagnosis*; D002648:Child; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D010698:Phobic Disorders / Q000175:diagnosis; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D011594:Psychometrics; D015203:Reproducibility of Results; D055815:Young Adult