3.2.2. Convergent Validity and Associations among Social Measures

Convergent validity was assessed for a selection of measures (NEPSY-II subtests and SRS-2 Social Awareness and Social Cognition), and correlations among all social measures were examined (Table 3). Associations between NEPSY-II Theory of Mind and Affect Recognition were below the acceptable criterion of *r* > 0.50; however, the correlation coefficients of 0.43–0.51 were similar to data on the relation between the two measures reported by the publisher (*r* = 0.53) [30]. Significant associations were also found between SRS-2 Social Awareness and SRS-2 Social Cognition. However, there were no significant associations between the NEPSY-II subtests and the SRS-2 Social Awareness or Social Cognition. Although not all subdomains of the SRS-2 are theoretically aligned with the NEPSY-II direct assessments of social cognition, it is noteworthy that no SRS-2 subscales were correlated with NEPSY-II social cognition subtests. Within the SRS-2, all subscales were positively correlated, and the strength of many of the associations were strong (0.34–0.94).


**Table 2.** Examination of practice effects, test-retest reliability, and correlations with broader developmental domains.

\* *p* < 0.05, \*\* *p* < 0.01, \*\*\* *p* < 0.001; <sup>a</sup> Stanford-Binet, Fifth Edition Deviation Scores; ABIQ = Abbreviated Intelligence Quotient; PPVT-5 = Peabody Picture Vocabulary Test, Fifth Edition; EVT-3 = Expressive Vocabulary Test, Third Edition; SS = Standard Score; SRS-2 = Social Responsiveness Scale, Second Edition; ICC = intraclass correlation coefficients; ToM = Theory of Mind; AR = Affect Recognition; RRBI = Restricted, Repetitive Behaviors and Interests; *d* = Cohen's *d*.

**Table 3.** Bivariate Pearson correlations to assess convergent validity and associations among social measures at Time 1.


*\*\* p* < 0.01; \*\*\* *p* < 0.001; SRS−2 = Social Responsiveness Scale, Second Edition; RRBI = Restricted, Repetitive Behaviors and Interests.
