PSYC 210 Chapter Notes - Chapter 3: Anxiety Disorder, Internal Validity, Internal Consistency
13 Mar 2018
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Document Summary
Agreed-on definitions and categories enables clinicians and scientists to communicate accurately with one another about cases or research. Symptom: an observable physiological or psychological manifestation of a disease. Validity and reliability are the cornerstones of any diagnostic or assessment procedure. Typically measured on a scale of 0 to 1. 0. Ex: a wooden ruler, which produces the same value every time. Interrater reliability: the degree to which two independent observers agree on what they have observed; Ex: two umpires may not agree if a ball is fair or a foul. Test-retest reliability: the relationship between the scores that a person achieves when he or she takes the same test twice. Alternate-form reliability: the relationship between scores achieved by people when they complete two versions of a test that are judged to be equivalent. In case participants remember the questions from the first test. Internal consistency reliability: the degree to which different items of an assessment are related to one another.
