SCS 2150 Chapter Notes - Chapter 4: Longitudinal Study, Construct Validity, Face Validity

• School: University of Ottawa
• Department: Social Sciences
• Course: SCS 2150
• Professor: ivan Katchanovski

Document Summary

Deductive (with induction in the feedback loop) Epistemological and ontological considerations: positivist and objectivist stance. Subjects (vs qualitative respondents) multidimensional profiles. Operationalization: devising measure of concepts (independent or dependent variable aspect of social world vs representation of something in need of explanation) Experiments manipulating independent variable for experimental group. Coding information >> transform to numbers for data analysis (need reliable measurement) Measurement allows for finer difference detection between people; constant device for measurement, helps reliability; basis to estimate correlation. Indicators: nominal (dictionary) definition, operational definition (how researcher will measure concept; single and multiple indicator measures) i. e. income from taxes is indicator of wealth. Likert items combine indicators (multiple-item measures) allows for factor/cluster analysis (allows shared characteristics to be discovered, accesses if the problems of single indicators have been avoided) Likert items = many statements (not questions) on theme to get sense of how people feel about that topic; interrelated items that make up the.