Homework 2

Matt wants to explore the relationship between video games usage and college gpa. He will have students from psych 226 classes fill out surveys asking for both video game usage and gpa

Associate

Amy is interested in whether if not video games can improve spatial awareness. She will be collecting data in the lab where she will have participants play either a simple or a complex game and then measure their spatial awareness after they play games

Casual

Dr. Xi is developing a new scale to measure depression. She is concerned that her scale for depression might actually be measuring anxiety instead. Which type of validity is she concerned about here?

Construct validity

Sarah is interested in the rates of video games usage in population across different demographic categories. She will send out a survey asking makes to report their video game usage

Frequency

Stefan wants to make a casual claim in his dissertation. Which of the following is necessary?

He just conduct an experiment

Dr. Ellison finds a relation between the amount of sleep and problem solving. Specifically, having a higher amount of sleep the night before an exam is associated with higher scores on two measures of problem solving. This is an example of which type of association?

Positive association

Which of the following is true of operational definitions?

Psychological variables can have more than one operational definition

In the study describes above the two variables "sex of the math major" and "test effort"

Sex of the math major was manipulated and test effort was measured