Psychometrics - The Dangers of Rating Scales and Screeners

Dr. O'Leary discusses a variety of concerns that all clinicians should have in mind when using psychometrics.  In the end, he hopes you come away  with some level of agreement with the statement: “Our primary concern should not be with the quantity of data, but with the quality of the data.”  Statistics are conceptual machines that will produce results no matter what you feed them.  These results can be truly helpful and informative.  But statistics are also poop in poop out machines, and adding more malarky does not magically convert the results into something other than BS.

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