Question

14) You want to see if the experimental course on studying had any effect on psychology knowledge in May among freshmen and seniors only. For this question you should use \"year2\" instead of \"year\" because the variable \"year2\" excludes juniors. Now, write syntax in the section Question 9 that tests the interaction between year2 and course in predicting May psychology knowledge. Your syntax should also do the following: a. Output descriptive statistics b. Output effect sizes c. Output estimated marginal means for all four year/course combinations d. Output a plot of your results, with error bars, with \"year2\" on separate lines. Based on your output, please answer the following questions: e. Is the interaction significant? f. What is the effect size (number) for the interaction term (not the whole model)? g. You notice that the main effect of year is significant. For Gramma, what is the meaning of this significant main effect of year? Hint: your answer should mention the 'course' variable h. Describe \"for Gramma\" what this analysis is telling us overall (no need to use numbers):

          14) You want to see if the experimental course on studying had any effect on psychology knowledge in
May among freshmen and seniors only. For this question you should use \"year2\" instead of
\"year\" because the variable \"year2\" excludes juniors. Now, write syntax in the section
***Question 9*** that tests the interaction between year2 and course in predicting May psychology
knowledge. Your syntax should also do the following:
a. Output descriptive statistics
b. Output effect sizes
c. Output estimated marginal means for all four year/course combinations
d. Output a plot of your results, with error bars, with \"year2\" on separate lines.
Based on your output, please answer the following questions:
e. Is the interaction significant?
f. What is the effect size (number) for the interaction term (not the whole model)?
g. You notice that the main effect of year is significant. For Gramma, what is the meaning of
this significant main effect of year? Hint: your answer should mention the 'course' variable
h. Describe \"for Gramma\" what this analysis is telling us overall (no need to use numbers):

14) You want to see if the experimental course on studying had any effect on psychology knowledge in
May among freshmen and seniors only. For this question you should use ÿear2ïnstead of
ÿearb̈ecause the variable ÿear2ëxcludes juniors. Now, write syntax in the section
***Question 9*** that tests the interaction between year2 and course in predicting May psychology
knowledge. Your syntax should also do the following:
a. Output descriptive statistics
b. Output effect sizes
c. Output estimated marginal means for all four year/course combinations
d. Output a plot of your results, with error bars, with ÿear2ön separate lines.
Based on your output, please answer the following questions:
e. Is the interaction significant?
f. What is the effect size (number) for the interaction term (not the whole model)?
g. You notice that the main effect of year is significant. For Gramma, what is the meaning of
this significant main effect of year? Hint: your answer should mention the 'course' variable
h. Describe f̈or Grammaẅhat this analysis is telling us overall (no need to use numbers):

Added by Daniel Y.

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