POL242Y1 Lecture Notes - Lecture 3: Convergent Validity, Face Validity
21 Nov 2012
School
Department
Course
Professor
Document Summary
Validity is a concept most easily identifiable with quantitative research. Term has a wide range of possible meanings in the field of research methods, but the central idea revolves around accuracy and truthfulness. Measurement validity for a measurement to be valid, if it accurate represents the concept that it is intended to operationalize: face validity is one aspect of measurement validity. Does the measure we are using seem like it should be used as a measure: e. g. Someone who owns a pet can beat their pet. Hence the individual who donates to animal shelters is better. Indicators are said to be divergently valid if the variables are thought to be indicators of the same measure- but have reverse directionalities- and they yield opposing results for most cases. Difference is that we can use multiple indicators to construct a measure. External validity-findings are generalized from the sample included in analysis to cases outside of the sample.
