What conclusions can be drawn from the f-ratios

Assignment Help Advanced Statistics

Reference no: EM13499227

Complete each of the following ANOVA summary tables. In addition, answer the following questions for each of the ANOVA summary tables: a. What is the factorial notation? b. How many conditions were in the study? c. How many subjects were in the study? d. Identify significant main effects and interaction effects.

Source	df	SS	MS	F
A	1	60
B	2	40
A x B	2	90
Error	30
Total	35	390

Source	df	SS	MS	F
A	2	40
B	3	40
A x B	6	150
Error	72
Total	83	390

Source	df	SS	MS	F
A	1	10
B	1	60
A x B	1	20
Error	36
Total	39	150

A researcher is attempting to determine the effects of practice and gender on a timed task. Participants in an experiment are given a computerized search task. They search a computer screen of various characters and attempt to find a particular character on each trial. When they find the designated character, they press a button to stop a timer. Their reaction time (in seconds) on each trial is recorded. Subjects practice for 2, 4, or 6 hours and are either female or male. The reaction time data for the 30 subjects appear here.

2 hours:

Women	Men
12	11
13	12
12	13
11	12
11	11

4hours:

Women	Men
10	8
10	8
10	10
7	9

6 hours:

Women	Men
7	5
5	6
7	8
6	6
7	8

Source	df	SS	MS	F
Gender		0.027
Practice		140.60
Practice x Gender		0.073
Error		28.00
Total		168.70

c. What conclusions can be drawn from the F-ratios?

d. What is the effect size, and what does this mean?

e. Graph the means.

Reference no: EM13499227

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