The current study examined the psychometric properties of a set of maximally efficient items (SMIs) from the Social Skills Improvement System–Teacher Rating Scale (SSIS-TRS). Sixty-three teachers rated 302 second through sixth graders on these SMIs, and several concurrent validity measures were administered. Results provided initial support for the validity of scores from the SMIs. Implications for practice and psychological research are discussed.
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Anthony et al. (2017) studied this question.
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