The main difference between single sample t-testing and related sample t-testing is the focus on "D"...
The main difference between single sample t-testing and related sample t-testing is the focus on "D" or difference scores. T or F
There is some evidence indicating women who have visible tattoos are viewed as less attractive than people who have no visible tattoos. To test this hypothesis a researcher will provide a sample of participants a photo of 5 women before she obtained a tattoo then again after a computer generated tattoo is placed on her skin. The researcher sets the alpha level at .05 Using the data below, what is the t(obt) and effect size?
| No visible tattoos | With visible tattoos | |
| woman #1 |
6 |
6 |
| woman #2 | 9 | 3 |
| woman #3 | 8 | 5 |
| woman #4 | 7 | 1 |
| woman #5 | 10 | 6 |
a. t = -3.45
r2 = 70%
b t= 3.55
r2 = 75%
c t = 2.75
r2 = 60%
d t= 2.53
r2 = 68%
The following is an accurate hypothesis pair for related sample t-testing:
- H0: μd = 0 (two-tailed)
- H1: μd ≠ 0 (two-tailed)
- H1: μd > 0 (upper-tailed)
- H1: μd < 0 (lower-tailed)
T or F
There is some evidence indicating women who have visible tattoos are viewed as less attractive than people who have no visible tattoos. To test this hypothesis a researcher will provide a sample of participants a photo of 5 women before she obtained a tattoo then again after a computer generated tattoo is placed on her skin. The critical value of t if the researcher sets the alpha level at .05 is t=-3.132
T or F
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The main difference between single sample t-testing and related
sample t-testing is the focus on "D"...
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