Different modes of analyzing correlational data

Analyzing data using computers

Basic tactics for analyzing correlational data

Handout 7.2 discusses a variety of ways to make inferences about correlational data. In discussing this handout, stress that
  1. Traditionally, the data's scale of measurement determined what statistical tests were deemed appropriate; and

  2. Some believe that using median splits or variations on that technique is too costly in terms of power. The arguments for this position are made in Table 7-6 (p. 203), as well as by
Cohen, J. (1990). Things I have learned (so far). American Psychologist,45, 1304-1312.

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