PSYB04H3 Chapter 8: Chapter 8 Notes Version 2
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Validity: if you get what you are expected to measure. Reliability: if when replicated you get the same result. Inter observer reliability: when each person observes and reports similar results. association claim: both variables are measured unlike an experiment where at least onevariable is manipulated. Clause is an associative claim when: the two variables are measured: E. g. 1 (cid:862)talk deeply, be happy? (cid:863) an asso(cid:272)iative (cid:272)lause (cid:271)e(cid:272)ause (cid:271)oth variables (depth of a conversation and happiness) are measured, they cannot be successfully assigned or manipulated. **bivariate correlations is an association that involves exactly two variables. How to test an association claim: record data, describe relationship using graphs (e. g. use scatter plot to assess correlation) Nb: correlation coefficient (r ) has direction and strength. Cohen"s guidelines for evaluating strengths of association (based on r): Nb: when graphing both variables quantitative-- use scatter plot.
