PSYB01H3 Lecture 11: PSYB01 - Lecture 11 Notes

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Order the levels from lowest to highest. Analyzing the results of research investigations what to do with data. Three basic ways of describing the results: comparing group percentages. Example: ask boys and girls whether they like school. Like or dislike is nominal (categorical variable) Find that 60 boys and 70 girls like school. Perform statistical analysis to determine if difference between groups is significant. Analyzing the results of research investigations: correlating individual scores. Obtain pairs of observations from each subject (each individual has two scores; one from each of the variables). Ask whether variables go together in a systematic fashion by calculating pearson r correlation coefficient . (determines strength and direction of relationship) Self esteem 3. 75 0. 426 0. 182 3. 1 4. 6 1. 5. What to do with data: comparing group means. Compare the mean (average) response of experimental group with the mean response of control group. Want to study the effect that stroking a dog has on resting heart rate.

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