What are the four elements of power analysis? Select 4 of the5 options as correct.

a)Power

b)Sample size

c)Alpha level

d)Effect size

e)Calculated p value

What type of inferential test should the researcher conduct to examine if there is a difference in mean scores on a nutrition and physical fitness assessment of college aged students before and after a motivational speaker presents a talk on healthy living strategies?

a)Paired t test

b)Independent t test

c)Chi square

In a correlation matrix, what are the values that appear in the rows and columns?

a)Values of Pearson's r

b)P values for each bivariate relationship

A researcher tested the hypothesis that patients in an ICU who were administered a silicone-border foam dressing compared to those patients who used a gauze dressing would be less likely to have incontinence-associated dermatitis . What statistical test would the reader expect to be reported?

a)T-test

b)Chi-square

c)ANOVA

d)Correlation

What are the three characteristics of the normal distribution?

a)Bell-shaped

b)Unimodal

c)Mean, median, and mode are all on the center point of the curve.

d)The standard deviation is always equal to zero (0).

e)The mean is always located to the right of the median.

When presenting the demographic attributes of the sample in a study, the researcher reports on the two study groups and the following characteristics: gender (male/female); marital status (single, married, separated/divorced; widowed); educational level (some high school, high school graduate, some college, college graduate); and age (measured in years). For which of these variables would the researcher show a t value?

a)Age

b)Educational level

c)Marital status

d)Gender