PSYC 217 Lecture Notes - Lecture 8: Partial Correlation, Causal Inference, Longitudinal Study
2 Feb 2016
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Not all variables can be manipulated e. g. religion and helping behaviour; alcohol effects on pregnancy; Actuarial prediction: prediction using statistical info only (not personal) Absence of extraneous (3rd) variables (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) hostile parenting and effect on future relationships (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Y statistically controlling for z (cid:1) correlation between x and y will be approximately 0 (cid:1) variables included in the analysis (cid:1) (cid:1) A partial correlation between x and y is the correlation between x and. If the relationship between x and y is entirely due to z, the partial. The technique of multiple regression statistically controls for all third: person by treatment quasi-experiments. Iv x pv designs are sometimes classified as quasi-experiments: natural experiment. Naturally occurring events expose some ppl to the treatment. Researchers rush to the site to collect data. The stronger the argument we can make that the natural event.
