Psychometric properties of the social phobia and social interaction anxiety scales: evidence of construct equivalence in an African American sample

Factor structure of the Social Phobia Scale (SPS) and the Social Interaction Anxiety Scale (SIAS) in a clinical sample recruited from the community

BACKGROUND

The Social Phobia Scale (SPS) and the Social Interaction Anxiety Scale (SIAS) are widely used self-report questionnaires to assess symptoms of social anxiety. While SPS measures social performance anxiety, SIAS measures social interaction anxiety. They are mostly reported simultaneously, but there have not been consistent results of the joint factor structure and therefore no consistent recommendations on how to use and evaluate the questionnaires. This study aimed (1) to evaluate the underlying joint factor structure of the SPS and SIAS and (2) to test whether SPS and SIAS are reliable scales to assess two different aspects of social anxiety.

METHODS

The one-factor, two-factor, and bifactor models were tested in a clinical sample recruited from the community and diagnosed with a social anxiety disorder. Exploratory and confirmatory factor analyses were conducted, bifactor-specific indices were calculated, and the content of the less fitting items was examined.

RESULTS

Confirmatory factor analyses showed that the best-fitting model was the bifactor model with a reduced set of items. The bifactor-specific indices showed that the factor structure cannot be considered unidimensional and that SPS and SIAS are reliable subscales. A closer examination of the less fitting item content and implications for future studies are discussed.

CONCLUSIONS

In conclusion, SPS and SIAS can be reported together as an overall score of social anxiety and are separately reliable measures to assess different aspects of social anxiety.

TRIAL REGISTRATION

This is a secondary analysis of data from two trials registered under ISRCTN75894275 and ISRCTN10627379.

Social Anxiety and Alcohol Use and Related Problems among Black Adults: Differential Roles of Motives by Sex

Background: Black individuals who consume alcohol are at risk of experiencing alcohol-related problems. Psycho-sociocultural models of substance use posit that these individuals may continue to drink despite alcohol-related problems to cope with psychological distress. Emerging data indicate that social anxiety is one type of distress that may play an important role in drinking behavior among Black adults. Objectives: Yet despite evidence that drinking to cope varies as a function of sex among predominantly White samples, this is the first known study to test whether socially anxious Black women are similarly at risk for coping motivated drinking and its negative sequelae. Participants were 257 (75% female) Black undergraduates endorsing current alcohol use. Results: Among women and men, social anxiety was significantly related to more alcoholrelated problems and coping-depression and conformity motives. Among women (but not men), social anxiety was also significantly related to more coping-anxiety and greater typical drinking. Serial mediation analyses among women indicated that social anxiety was indirectly related to more alcohol problems via the serial effect of each of the relevant drinking motives (copinganxiety, coping-depression, conformity) and drinking frequency. Among men, social anxiety was indirectly related to alcohol problems via coping-depression and conformity motives. Conclusions/Importance: Findings highlight the importance of considering sex in research on psychosocial vulnerability factors associated with alcohol-related problems among Black adults.

Impostor Phenomenon and Psychological Well-Being: The Moderating Roles of John Henryism and School Racial Composition Among Black College Students

The impostor phenomenon (IP), or erroneous cognitions of intellectual incompetence, is a risk factor for poor psychological adjustment among Black emerging adults. Grounded in Lazarus and Folkman's Stress and Coping Framework, the current study investigated John Henryism's active coping and institutional racial composition as moderators of the association between IP and indicators of psychological well-being among 266 Black students (77% women; M _age = 19.87) attending predominately White institutions (PWIs) and historically Black colleges/universities (HBCUs). Hierarchical moderation regression analyses revealed that IP was associated with decreases in well-being indicators among students attending PWIs and HBCUs. Moreover, students who attended PWIs and reported higher levels of John Henryism (+1 SD) were most vulnerable to increases in social anxiety, particularly at higher levels of IP. Results suggest that the interaction between IP, John Henrysim, and institutional racial composition may negatively influence psychological well-being. We discuss how these findings can be used to inform clinical and educational practices to best support Black college students.

Attentional control deficits in social anxiety: Investigating inhibition and shifting functions using a mixed antisaccade paradigm

BACKGROUND AND OBJECTIVES

Attentional control has recently been assumed to play a critical role in the generation and maintenance of threat-related attentional bias and social anxiety. The present study aimed to investigate whether socially anxious (SA) individuals show impairments in attentional control functions, particularly in inhibition and shifting.

METHODS

Forty-two SA and 41 non-anxious (NA) participants completed a mixed antisaccade task, a variant of the antisaccade task that is used to investigate inhibition as well as shifting functions.

RESULTS

The results showed that, overall, SA participants had longer antisaccade latencies than NA participants, but the two groups did not differ in their antisaccade error rates. Moreover, in the single-task block, SA participants had longer latencies than NA participants for antisaccade but not prosaccade trials. In the mixed-task block, the SA participants had longer latencies than the NA participants for both task types. The two groups did not differ in their latency switch costs in the mixed-task blocks.

LIMITATIONS

First, this study was conducted using a non-clinical sample of undergraduate students. Second, the antisaccade task measures primarily oculomotor inhibition. Third, this study did not include the measure of state anxiety to rule out the effects of state anxiety on the present findings.

CONCLUSIONS

This study suggests that SA individuals demonstrate diminished efficiency of inhibition function but show no significant impairment of shifting function. However, in the mixed-task condition, SA individuals may exhibit an overall reduction in processing efficiency due to the higher task difficulty.

Confirmatory Factor Analysis of the Combined Social Phobia Scale and Social Interaction Anxiety Scale: Support for a Bifactor Model

For the Social Phobia Scale (SPS) and the Social Interaction Anxiety Scale (SIAS) together, this study examined support for a bifactor model, and also the internal consistency reliability and external validity of the factors in this model. Participants (N = 526) were adults from the general community who completed the SPS and SIAS. Confirmatory factor analysis (CFA) of their ratings indicated good support for the bifactor model. For this model, the loadings for all but six items were higher on the general factor than the specific factors. The three positively worded items had negligible loadings on the general factor. The general factor explained most of the common variance in the SPS and SIAS, and demonstrated good model-based internal consistency reliability (omega hierarchical) and a strong association with fear of negative evaluation and extraversion. The practical implications of the findings for the utilization of the SPS and SIAS, and the theoretical and clinical implications for social anxiety are discussed.