PSYC 1000 Lecture Notes - Lecture 4: Breathalyzer, Internal Consistency, Psoriasis

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Lisa Giguere

Document Summary

Knowledge generation and mobilization in psychology (part 2) Based on objective, valid and reliable measurements: objective means the measure of an entity or behaviour that, within a margin of error, is consistent across instruments and observers. There"s a way for us to get a consistent answer across different researchers/instruments. Assume there is always going to be error. You should be able to get very similar answers when a different scientist tries the same experiment. We measure variables, referring to the object, concept, or event being measured. In psychology, reliability is often measured in terms of. Test re-test reliability (eg: score on a test of social anxiety should be similar with one day between testing) Construct validity: the extent to which the ivs and dvs in a study truly represent the abstract concept of interest to the researcher. Often assessed in terms of convergent and discriminant validity.