Psychology 2820E Lecture Notes - Lecture 3: Central Tendency, Questionnaire Construction, Likert Scale

• School: Western University
• Department: Psychology
• Course: Psychology 2820E
• Professor: Riley Hinson

Document Summary

Psychological measures: operational definitions, questionnaires, validity, reliability and. Cal(cid:272)ulati(cid:374)g a pe(cid:396)so(cid:374)(cid:859)s s(cid:272)o(cid:396)e o(cid:374) a (cid:395)uestio(cid:374)(cid:374)ai(cid:396)e (cid:894)a(cid:374) e(cid:454)a(cid:373)ple of (cid:395)ua(cid:374)titati(cid:448)e, measurement data: measurement data: how much of something does someone have (e. g. amount of extraversion, interested in the average) Tie an observable construct to something that can be measured. The concepts that are part of scientific research need to be operationalized, which means they must be linked to observable events that can be measured. Operational definition of a variable: defines a variable according to the specific operations used to produce or measure the variable. Questionnaires: one of the most commonly used forms of measurement. Questionnaires typically involve a form of self-report in the sense that the respondent is asked to identify how they behave or feel either in general or in specific situations (said to be engaging in explicit cognition) Explicit cognition: the person is aware of the thinking that goes into the response.