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Unpacking Clinical Judgment in Psychological Testing: Intuition, Biases, and Interpretation

This insightful analysis explores the nuances of clinical judgment within psychological testing. It examines whether clinicians possess intuitive powers to predict behavior better than others and discusses how experience influences their judgments. Factors limiting clinical judgment, such as confirmation bias and feedback difficulties, are highlighted. Key principles of test interpretation are also presented, emphasizing the importance of patterns over single indicators. Additionally, the role of descriptive statistics and correlation in understanding psychological assessments and behaviors is explored for a comprehensive understanding.

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Unpacking Clinical Judgment in Psychological Testing: Intuition, Biases, and Interpretation

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Presentation Transcript

  1. Intro to Psychological Testing (part II)

  2. Clinical Judgment • Do clinicians have special powers of intuition? • Can clinicians predict behavior better than other people? • Does experience improve clinicians’ judgments?

  3. Factors That Limit Clinical Judgment • Lack of feedback on outcomes • Inability to use feedback (hindsight bias) • Confirmation bias • Illusory correlations and missing cells • Weighting information inappropriately • Overconfidence

  4. Some Principles of Test Interpretation • Extreme scores tell you more than normal range scores • Do not over-interpret differences between scales • Test interpretations are only hypotheses, not facts • Look for patterns; don’t rely on single indicators • Don’t assume the test is wrong if it doesn’t match your intuition

  5. Descriptive Statistics • Measures of Central Tendency • Mode • Mean • Median • Measures of Variability • Standard deviation

  6. Normal Curve

  7. Score Transformations _ z = X – X SD New score = z*NewSD + NewMean T = 10z + 50 IQ = 15z + 100

  8. Correlation • Looks at the relationship between two things • Scatterplot • Correlation coefficient

  9. Restriction of Range

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