week 8.3 review

QUESTION 3

1. As probability of making a Type I error increases, the probability of making a Type II error also increases.

 True

 False

QUESTION 4

1. Studies that lack sufficient power are more likely to make a type I error.

 True

 False

QUESTION 5

1. Hypothesis testing in univariate statistics is used to determine whether or not any change in the dependent variable is due to change in the independent variable or simply due to chance.

 True

 False

QUESTION 6

1. For social sciences, power is usually deemed sufficient at .80.

 True

 False

QUESTION 7

1. The easiest method of increasing power in a study is to increase sample size.

 True

 False

QUESTION 8

1. If the null hypothesis is rejected, then no statistical group differences were found.

 True

 False

QUESTION 9

1. The level of significance in a study is directly related to the amount of type I error allowed in a study.

 True

 False

QUESTION 10

1. In hypothesis testing, the null hypothesis is always tested.

 True

 False

QUESTION 11

1. Power is the same as confidence.

 True

 False

QUESTION 12

1. Scores that are below the stated level of significance and critical value are considered to be statistically significant.

 True

 False

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