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# Statistics MCQ

### A test to determine whether there are significant differences between two independent groups’ means on the same dependent variable is known as _____

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### Robustness is characteristic of statistical tests that indicates_____

Correct Answer: Both a and b

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### The power of a test is estimated by _____

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### The standard for minimum power in psychological research is_____

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### Power is the probability that the null hypothesis will be _____

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### The _____ t test formula contains the pooled variance estimate.

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### A significant value of F in Levene’s test indicates that the two groups’ variances are significantly different from each other.

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### Independent Groups t Test is a statistical procedure designed to evaluate the difference between two groups’ means on a _____ variable.

Correct Answer: Both a and b

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### In situ Design occurs often in t-test designs and ANOVAs where the participants are randomly assigned to the groups.

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### An assumption in the independent groups t test and ANOVA that the two groups or more groups have equal or approximately equal variances is known as_____

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### Heterogeneity of Variance is a violation of the assumption that two groups have _____ variances in the independent groups t test.

Correct Answer: Both a and b

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### Effect sizes are typically reported as_____

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### In Controlled Experiment, placebo is given to_____

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### In Controlled Experiment an experimental group that receives some treatment is _____ variable

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