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16. A group of educational psychologist wanted to measure math anxiety in second year college students...

16. A group of educational psychologist wanted to measure math anxiety in second year college students to determine whether completing an introductory math course would influence math anxiety. They measured 7 students' math anxiety during the first and last days of class. Using the data below, conduct the appropriate test to determine whether there was a significant difference in the anxiety scores. (alpha = .05)

Student First Day Last Day
1 79 76
2 63 55
3 90 78
4 57 60
5 47 36
6 84 76
7 73 65

17. What is the correct name of the "good guy" variance? Explain what's good about it.

18. What is the correct name of the "bad guy" variance? Explain what's bad about it.

Social-Sciences   psychology   
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16. A repeated measures t-test was conducted.

Diff (T2 - T1) Dev (Diff - M) Sq. Dev Treatment 79 63 90 57 47 84 73 Treatment2 13.8 1.65 27.94 94.37 18.37 1.65 1.65 76 3.71Difference Scores Calculations Mean: -6.71 S2- SSdf- 159.43/(7-1) 26.57 SM-S2/N- 26.57/7-3.8 SM-VSM 3.8 1.95 T-value Calculat​​​​​​ The value of t is -3.446207. The value of p is .0137. The result is significant at p < .05.

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