In a 1977 study (Smith & Glass), a correlation of .32 was found between whether

In a 1977 study (Smith & Glass), a correlation of .32 was found between whether or not an individual had psychotherapy and whether or not his or her condition improved. For this study, r2 .10, meaning that psychotherapy could account for only 10% of the variability in results. Are you impressed with the results? Why or why not?

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