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Homework: Understanding Your Stats Name: ___________________________ Title of Research Paper: ____________________________________________________ ___________________________________________________________________________________ Instructions: If you did comparisons of 2 or more groups, you need to do the following for EACH comparison. 1. Briefly describe the variables involved. For example: "We compared males and females on their levels of self-esteem". Or, "we compared the experimental group (those who filled out the questionnaire on yellow paper) to the control group (those who filled out the questionnaire on white paper) on their self-esteem scores. 2. Provide the means (X), Standard deviations (SD), and number of subjects (N) for each group. 3. Provide the t-value, df, and p-value for the comparison. Report as t(df) = 2.34, p = .04 4. Interpret the results. For example: "The comparison was statistically significant. Males had significantly higher self-esteem scores than females". Or, "The comparison was not statistically significant. There was no significant difference in self-esteem scores based on whether subjects took the questionnaire on yellow or white paper". Instructions: If you correlated two variables, you need to do the following for EACH correlation. 1. Briefly describe the variables involved. For example: "We correlated self-esteem scores and GPA's of freshmen girls". 2. Provide the means (X) and standard deviations (SD) for both variables. Also indicate how many subjects were involved in the correlation (N). 3. Provide the correlation coefficient (r) and p-value for each correlation. Report as r = .64, p = .02. 4. Interpret the results. For example: "There was a moderate positive correlation between freshman GPA and self-esteem. This correlation was statistically significant. Higher levels of self-esteem were associated with higher GPA's in freshman girls". Or, "The correlation was not statistically significant. There seemed to be very little relationship between GPA and self-esteem in freshman girls".
Remember, you must answer questions 1-4 for EACH comparison or correlation.
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