Independent measures ANOVA: A researcher wants to test whether having a healthy breakfast will help children do better on an exam. To test this, the researcher recruits 60 students. She then randomly assigns each student to either receive a healthy breakfast, an unhealthy breakfast, or no breakfast. Then, she gives each student an exam. The researcher records the participants' scores on the exam. The results are given below. Test whether the type of breakfast (healthy, unhealthy, no breakfast) was associated with differences in exam scores at a .05 level of significance. Healthy Breakfast Unhealthy Breakfast No Breakfast 95 75 81 85 77 85 99 85 64 81 90 73 92 65 82 93 45 90 100 87 66 88 64 71 78 62 68 89 73 89 84 41 87 99 77 78 95 89 80 96 95 91 89 82 66 90 84 77 92 73 74 87 71 81 88 63 83 92 62 75 Answer the questions on the attached sheet. Group 1 Group 2 Group 3 ____________________ _____________________ _____________________ Sample Size Sample Mean Sample Standard Deviation Based on the table shown in SPSS, state the following values associated with the difference scores: SSBetween: SSWithin: MSBetween: MSWithin: Based on the table shown in SPSS, state the following values associated with the test statistic: F-obt: Degrees of freedom: Significance:

Independent measures ANOVA:

A researcher wants to test whether having a healthy breakfast will help children do better on an exam. To test this, the researcher recruits 60 students. She then randomly assigns each student to either receive a healthy breakfast, an unhealthy breakfast, or no breakfast. Then, she gives each student an exam. The researcher records the participants’ scores on the exam. The results are given below. Test whether the type of breakfast (healthy, unhealthy, no breakfast) was associated with differences in exam scores at a .05 level of significance.

Healthy Breakfast Unhealthy Breakfast No Breakfast
95 75 81
85 77 85
99 85 64
81 90 73
92 65 82
93 45 90
100 87 66
88 64 71
78 62 68
89 73 89
84 41 87
99 77 78
95 89 80
96 95 91
89 82 66
90 84 77
92 73 74
87 71 81
88 63 83
92 62 75

Answer the questions on the attached sheet.

 

Group 1 Group 2 Group 3
____________________ _____________________ _____________________
Sample Size
Sample Mean
Sample Standard Deviation

 

Based on the table shown in SPSS, state the following values associated with the difference scores:

SSBetween:

SSWithin:

MSBetween:

MSWithin:

 

Based on the table shown in SPSS, state the following values associated with the test statistic:

F-obt:

Degrees of freedom:

Significance:

 

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