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Three studies evaluated the reliability and validity of the Investment Model Scale, an instrument designed to measure four constructs, including commitment level and three bases of dependence-satisfaction level, quality of alternatives, and investment size. In all three studies, reliability analyses revealed good internal consistency among items designed to(More)
Williams syndrome is a genetic disorder resulting in a variety of medical and developmental features, one of which is a frequent outward presentation of substantial happiness. In this paper we describe the unique expression of happiness in people with Williams syndrome, with several anecdotes and a frame by frame conversational analysis. We then discuss(More)
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