Calculate the appropriate effect sizes for each tests

Assignment Help Applied Statistics

Reference no: EM132298628

Questions -

Q1. The following table presents the results of a two-way design with two levels of IV #1, two levels of IV #2, and n = 10 participants in each condition. Each value in the table is the mean score for the participants in that particular condition. Notice that one of the mean values is missing:

		IV #2
		B1	B2
IV #1	A1	10	50
IV #1	A2	40

What value should be assigned to the missing mean so that the resulting data shows...

A. a main effect for IV #1?

B. no main effect for IV #1?

C. a main effect for IV #2?

D. no main effect for IV #2?

E. an interaction between IV's?

F. no interaction between IV's?

Q2. (Both by hand and in SPSS)

Shrauger (1972) conducted an experiment that compared the effect of an audience on the performance of participants with high and low self-esteem. Hypothetical data from this experiment are as follows. The data represents the number of errors made by each participant (6 participants in each condition):

		Alone	With audience
Self-esteem	High	3, 6, 2, 2, 4, 7	9, 4, 5, 8, 4, 6
Self-esteem	Low	7, 7, 2, 6, 8, 6	10, 14, 11, 15, 11, 11

For the by-hand part, answer the following three questions: does there appear to be 1) a main effect of self-esteem, 2) a main effect of alone/audience, and 3) an interaction between the two? Show your work to answer whether these effects appear to exist. Then, let SPSS do the hypothesis tests to see if the effects really are significant.

Also, calculate the appropriate effect sizes for each of these three tests.

3. (Both by hand and in SPSS)

Suppose the low-self-esteem participants from Shrauger's (1972) audience study were brought back in 2010 to repeat the same cognitive task. The data still represents the number of errors made by each participant (3 participants in each condition). This time, assume the same 3 participants experience each of the 4 conditions:

		Alone	With audience
Year	1972	8, 7, 2	12, 14, 11
Year	2010	9, 6, 5	9, 6, 4

For the by-hand part, answer the following three questions: does there appear to be 1) a main effect of year, 2) a main effect of alone/audience, and 3) an interaction between the two? Show your work to answer whether these effects appear to exist. Then, let SPSS do the hypothesis tests to see if the effects really are significant.

Also, calculate the appropriate effect sizes for each of these three tests.

4. (Both by hand and in SPSS)

For the following design, eight professors are recruited. Four listen to rock music at each of four different time points across a single work day. Four listen to classical music at each of four different time points across a single work day. The data represents ratings of the music:

		9am	11am	1pm	4pm
Rock	Otten	8	7	5	3
	Katz	9	7	5	1
	Plunkett	8	5	4	1
	Ma	6	6	4	2

Classical	Quilici	2	4	8	10
	Berzenski	6	5	9	10
	Ainsworth	2	4	6	10
	Sergi	3	5	6	9

For the by-hand part, answer the following three questions: does there appear to be 1) a main effect of type of music, 2) a main effect of time of day, and 3) an interaction between the two? Show your work to answer whether these effects appear to exist. Then, let SPSS do the hypothesis tests to see if the effects really are significant.

Also, calculate the appropriate effect sizes for each of these three tests.

Reference no: EM132298628

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