Kelsey is interested in how students learn different subjects through games or in traditional classroom formats. She thinks that the effect of learning through a game vs. a traditional format might differ based on subject. She designs a 2 x 2 factorial within-subjects experiment in which participants learn introductory algebra and introductory music, with one lesson of each being taught though a game, and one taught in a traditional classroom setting. SPSS output the following: Game Class Math 6.92 4.83 Music 5.91 7.08 Source SS df MS F Sig Format 2.52 1 2.52 2.36 .152 Subject 4.69 1 4.69 1.81 .206 Format x Subject 31.69 1 31.69 25.70 .001 Error 13.56 11 1.23 Describe the results of this study (each main effect and interaction). State the statistics (just the #’s) as they would appear in a research report (each main effect and interaction).
Kelsey is interested in how students learn different subjects through games or in traditional classroom formats. She thinks that the effect of learning through a game vs. a traditional format might differ based on subject. She designs a 2 x 2 factorial within-subjects experiment in which participants learn introductory algebra and introductory music, with one lesson of each being taught though a game, and one taught in a traditional classroom setting. SPSS output the following:
|
Game |
Class |
|
|
Math |
6.92 |
4.83 |
|
Music |
5.91 |
7.08 |
|
Source |
SS |
df |
MS |
F |
Sig |
|
Format |
2.52 |
1 |
2.52 |
2.36 |
.152 |
|
Subject |
4.69 |
1 |
4.69 |
1.81 |
.206 |
|
Format x Subject |
31.69 |
1 |
31.69 |
25.70 |
.001 |
|
Error |
13.56 |
11 |
1.23 |
|
|
- Describe the results of this study (each main effect and interaction).
- State the statistics (just the #’s) as they would appear in a research report (each main effect and interaction).
From the provided information,
1)
The results can be described by looking at the p-values (denoted as Sig) for each effect.
The p-value for Format is 0.152 which is greater than 0.05, therefore, the main effect is not significant.
The p-value for subject is 0.206 which is also greater than 0.05, therefore, the main effect is not significant.
The p-value for Format × Subject is 0.001 which is smaller than 0.05, therefore, the interaction effect is significant.
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