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Validity and reliability studies were conducted on the Face Scale, a very brief, pictorial scale of mood which uses a sequence of 20 faces and does not require reading literacy. Correlational and experimental evidence of the Face Scale's construct validity is presented, as well as its test-retest reliability. Recommendations are made for its use as a screening tool and for additional validity studies.
Lorish et al. (Tue,) studied this question.
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