PSYC2101 Lecture Notes - Lecture 2: Carrie Buck, Rorschach Test, Psychometrics
Document Summary
Psychometrics: the branch of psychology dealing with the design, administration, and tests for the measurement of psychological variables. Psychometrics involves the measurement of mental constructs (e. g. , intelligence, apti opposed to physical constructs (e. g. , height, weight, antibody levels, etc. ) Mental constructs: theoretical, intangible quality or trait - conceptual variable. A psychological test aims to measure mental constructs by inferring an individual from their observed test score. Psychometrics has two fundamental assumptions about the mental constructs it tries: they exist, they can be measured and quantified. Someone who is 200cm is double the height of someone who is 100cm tal numbers and ratios and can something like iq be measured and quantified. For example; depression anxiety stress scale (dass) (lovibond and lovibond, 1995) It is an empirical question meaning it is a question that canno specifically data about the reliability and validity of the tests. Does test give consistent results when it"s given at different times, by different r.
