PSYC 200 Lecture Notes - Lecture 17: Pearson Product-Moment Correlation Coefficient, Confidence Interval, Qualitative Property
21 Mar 2017
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Bar graph vs. histogram: when to use: qualitative data-- bar graph, bars dont touch-- distinct categories, quantitative data-- histogram, bas touch-- reflects data continuity. Error bars and confidence intervals: sample means only estimate true pop means, how accurate is our estimate, confidence interval (ci, provides range in which pop mean is likely to fall, conventionally set at 95% Correlational research: purpose, describe relationship btn 2+ variables. If x increases, what (if anything) happens to y: pearson correlation coefficient (r) Examine association btn bis and broader sc value system, particularly in context of intergroup relations. Positive correlations between disgust sensitivity and rwa and rf. It was an online study in which the participants were assigned randomly to a control group or an experimental group. In the control group, they reacted to a scenario about consuming lettuce. In the experimental group they reacted to a scenario about eating maggots.
