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An investigator is studying the effect of a new growth hormone injection on height of boys with short stature. He has the boys come into the clinic every 6 months to have their height measured precisely on a calibrated stadiometer. Height is an example of what type of variable?

A researcher used a t-test for independent samples to compare the difference in social extroversion between women who had children and women who had no children. Based on the following SPSS output, what does the circled p value (p=0.287) tell you?

An investigator’s research hypothesis is: There will be a difference in work satisfaction between nurses who have a fixed schedule and nurses who have a rotating shift schedule. Using the standard level of significance (0.05), which conclusion would you make from the following SPSS output?

Which measure of central tendency can be reported with all levels of data (nominal, ordinal, interval/ratio)?

There is a difference in satisfaction with care between patients who receive care from an advance practice nurse and those who receive care from a physician. This statement is an example of a:

An investigator enrolls men who were college athletes and are now 40-59 years old into a study to examine the effectiveness in vitamins intended to decrease muscle loss. The men will be divided into three groups – Group 1 will take Vitamin A, Group 2 will take Vitamin B, and Group 3 will not take any vitamins. What is the independent variable?

The following table was reported to describe the sample in a study examining the relationship between coffee and tea consumption and mortality (Gardener, Rundek, Wright, Elkind, Sacc, 2013). Based on the information provided in the table, the “Race/ethnicity” data were collected at which level of measurement?

The results section of an article where an ANOVA was used to compare groups, reported F(3,36) = 8.62, p

a. Provide your own example of a nondirectional research hypothesis (not an example from the lecture or readings). b. What is the corresponding null hypothesis for your example in part a? c. What is the independent variable in your example in part a?  d. What is the dependent variable in your example in part a?

Which of the following research questions would BEST be studied with a qualitative study?