Psychological tests and certain physical characteristics

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Reference no: EM131108373

The data in Table 8.5 are a subset of the data considered by Clark, Vandenberg, and Proctor (1961) in a study concerned with the relationship of scores on various psychological tests and certain physical characteristics of twins. Table 8.5 gives the test scores (totals of a number of different psychological tests) of 13 dizygous (i.e., non-identical) male twins. Test the hypothesis of independence versus the alternative that the twins' test scores are positively correlated.

Reference no: EM131108373

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