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Research methods in psychopathology

Research methods in psychopathology. Forming and testing theories. The case study. Idiographic vs. nomothetic Closest to clinical experience Limited generality: Single N design Possible disconfirmation of generalization Overpathologizing Underpathologizing Generates hypotheses.

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Research methods in psychopathology

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  1. Research methods in psychopathology Forming and testing theories

  2. The case study • Idiographic vs. nomothetic • Closest to clinical experience • Limited generality: Single N design • Possible disconfirmation of generalization • Overpathologizing • Underpathologizing • Generates hypotheses

  3. Epidemiological studies • Incidence • Prevalence • Risk factors • Fergusson et al. (1998): Maternal smoking and late adolescent psychiatric disorders • Poverty and schizophrenia

  4. Correlational designs • Correlation coefficients • Group studies may still be correlational • Correlation = causation?

  5. Experiments • Random selection and random assignment • Manipulate independent variable • Measure dependent variable • Special problems in psychopathology

  6. Modified experiments • Analogue experiments • Animal models/College student models • Drug studies • Natural experiments • Single-subject designs: Little Albert plan • Mixed designs: Early vs. late-onset alcoholism and treatment with ondansetron • One grouping IV • One experimental IV

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