• 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
... [Show More] ________ 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
• Question 5
2 out of 2 points
Sequence effects and carryover effects are controlled using
Selected Answer:
counterbalancing
Answers:
counterbalancing
balancing
elimination
randomization
• Question 6
2 out of 2 points
A college student enrolls in an Introduction to Psychology course. The syllabus states that all students must participate in research conducted by psychology faculty or complete a comparable, alternative assignment. The policy creates _________ for researchers.
Selected Answer:
convenience sampling
Answers: quantitative studies
random sampling
replication studies
convenience sampling
• Question 7
0 out of 2 points
______ is a threat to external validity that occurs if your findings apply only to the groups your selected for your experiment
Selected Answer:
Maturation
Answers: Maturation
Nonreactive measure
History
Interaction of selection and treatment
• Question 8
2 out of 2 points
What is problematic about using white rats in experimental studies?
Selected Answer:
There is limited generalizability in these studies.
Answers: They have limited availability.
Their white color makes them immune to several behavior conditions.
They are too small.
There is limited generalizability in these studies.
• Question 9
2 out of 2 points
______ becomes a threat if participants drop out of the experiment at different rates for different conditions.
Selected Answer:
Mortality
Answers: Maturation
History
Selection
Mortality [Show Less]