PSY 290 Midterm Exam_PSY290 Midterm Quiz (Latest Version)Questions and Answers.
⦁ Question 1 0 out of 2 points Variations in room temperature or noise level, aversive odors in the lab space, and poor lighting are examples of ________ variables. Selected Answer: independent Answers: nuisance dependent independent participant ⦁ Question 2 0 out of 2 points When a dependent variable produces consistent measurements, it is said to be Selected Answer: valid Answers: sequential valid reliable hypothetical ⦁ Question 3 2 out of 2 points Blood sugar levels rise and fall in response to various factors including when one last ate. Dr. Jones wants to measure participants’ glucose levels over the course of a two-week treatment protocol. She arranges for participants’ blood to be drawn every morning, between 6:00 a.m. and 8:00 a.m., before the participants consume breakfast. She is exerting which type of control? Selected Answer: Constancy Answers: Randomization Constancy Elimination Random assignment ⦁ Question 4 2 out of 2 points In a study investigating relaxation and anxiety among 20-year-old females, participants are randomized to receive a relaxation exercise or no treatment. Anxiety is measured on a five-point scale from “no anxiety” to “extreme anxiety.” Which of the following is an extraneous variable that could contain two or more values? Selected Answer: Severity of anxiety prior to the treatment Answers: Age of the participants The anxiety scale Severity of anxiety prior to the treatment Severity of anxiety after the treatment
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