Assuming that a researcher hopes to demonstrate that a treatment or group membership variable makes a significant difference in outcomes: which term does the researcher hope will be larger: MSbetween or MSwithin? Why?
Answer to relevant QuestionsExplain the following equation: (Yij – My) = (Yij – Mi) + (Mi – My) What do we gain by breaking the (Yij – My) term into two separate components, and what do each of these components represent? Which of the terms on ...Suppose that two raters (rater A and rater B) each assign physical attractiveness scores (0 = not at all attractive to 10 = extremely attractive) to a set of 7 facial photographs. Pearson r is a common index of inter-rater ...Suppose that you have two different X variables (X1, X2) that you use to predict scores on Y. What formula would you need to use to assess whether their correlations with Y differ significantly? What information would you ...Let’s revisit some data that we looked at in Chapter 8, in Table 8.1. Let X = Gender, coded 1 = male, 2 = female. Let Y = height. Using SPSS, run a bivariate regression to predict Height from Gender. If you do not still ...Suppose that you correlate AGE with SBP (systolic blood pressure) and find a strong positive correlation. Next you compute a first order partial correlation between AGE and SBP controlling for WEIGHT (body weight). a. what ...
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