1. As part of a survey, students were asked how many people other than themselves lived in their household. The variable and data for "number of household members" can be best described as which of the following?

As part of a survey, students were asked how many people other than themselves lived in their household. The variable and data for "number of household members" can be best described as which of the following?

nominal

interval

quantitative

qualitative

2. What of the below is one purpose of an Institutional Review Board?

What of the below is one purpose of an Institutional Review Board?

The IRB is responsible for making sure that all approved experiments are double-blind studies

The IRB is responsible for making data from research publicly available for the sake of transparency

The IRB is responsible for reviewing and approving plans to protect privacy of participant data

The IRB is responsible for finding participants for studies and getting their informed consent

3.

\fA researcher, Dr. A, designed an experiment in which she wanted to examine the effect of exercising on how well people slept at night. Dr. A planned to randomly assign people to one of three conditions: (1) do no exercise, (2) do 15 min of exercise per day, or (3) do 30 min of exercise per day for a week. She planned to then have them rate how well they slept each night. Dr. A originally planned on having the participants exercise at home and time themselves for how long they exercised. However, another researcher, Dr. B, pointed out that if Dr. A ran the experiment that way, she wouldn't know what kind of exercise they were doing, or how hard the exercises were. Dr. B was worried that the type of exercise and how hard it was could affect sleep too even though only time was going to be measured. For this question, match the variable described to the type of variable it represents. difficulty of participants' exercise dependent variable how well participants slept lurking variable how long participants exercised independent variableUse the following table. Calculate the value that should replace the I! in the table. Round to the nearest hundredth if necessary. Love of Pizza Frequency Relative Frequency Cumulative Frequency Cumulative Relative Frequency Low 5 Medium ? High 16 ? NAhaven't had it 2 Type your