data represent
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Question 12 pts
Compute the effect size (Cohen’s d using the pooled variance). Which of the following is the effect size? Round 2 decimal points.
Cohen’s d =1.11 | |
Cohen’s d =1.13 |
Cohen’s d =2.10 | |
Cohen’s d =1.12 |
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Question 22 pts
What does the pooled Cohen’s d you obtained using the coin study data represent?
A small/weak effect | |
A medium/moderate effect |
A large effect | |
No effect |
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Question 32 pts
Why is the effect size reported?
To assess whether group means are different | |
To assess the overall magnitude of the difference between two groups using the standard deviation as the foundation. |
To assess the effect of the independent variable on the dependent variable | |
To assess the alternative hypothesis |
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Question 42 pts
When is it appropriate to use a dependent samples t-Test?
Participants are recruited after completing a screening questionnaire | |
Participants are of different gender |
Participants are randomly assigned to a group | |
Participants provide more than one score or they are matched |
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Question 52 pts
Results Section write up: Feedback level (positive versus negative) was used as the independent variable and self-intelligence ratings as the dependent variable. Results showed a significant difference between groups, t(38) = 3.45, p < .01. Participants rated their own intelligence higher in the positive feedback condition (M = 4.55, SD = 1.11) than participants in the negative feedback condition (M = 2.22, SD = .09). (fake results from fake date)
Using the write up of the results section from an APA empirical research article. Identify which test was conducted?
Independent sample t-test | |
Dependent sample t-test |
z-test | |
Pearson correlation |