PSY 100 Lecture Notes - Lecture 14: Job Performance, Psychopathy, Internal Consistency
Document Summary
Method for measuring individual differences related to a psychological construct. Based on a sample of relevant behaviour. Done is a scientific and controlled situation. Pcl-r criteria scores each of 20 traits: scoring is done through an interview, review of recorded interview, and official documents (e. g. , criminal files) All 20 traits are important in the diagnosis: score 0,1,2 for each one, no strict cut-off that indicates psychopathy. Procedures and environment: controls for extraneous factors that could differ across testing situations (e. g. , explicit instructions, procedures, time limits, etc. Norms: provides basis for interpreting your score, bad practice: using a test with norms for one group on a different group. Can the test be given in exactly the same way every time? (environmental. Can i obtain norms on which to evaluate your score? (norms) Would you get the same score: standardization) If correlated odd numbers with even numbers? (internal consistency) Does the test measure intelligence? (construct validity)
