QUESTIONS

Question 1

Dr. Fantastic wants to do a study on how emotional intelligence is related to grades of all students in Introduction to Psychology classes throughout all universities in the United States. She randomly selects 50 classes to participate in her study from universities across the nation. What is the name given to the 50 classes of psychology?

Population
Sample
Accessible Sample
Subgroup

Question 2

You are doing a mini experiment in a psychology class with 600 students. How would you randomly select your sample?

select people on the left side of the room
select individuals whose last names start with the letters A to L
put names in a hat and draw out the names of the first 300
all of the above

Question 3

Dr. Limona wants her population to be all people who are in therapy. Because she cannot list all the people in the world who are in therapy, what type of sampling technique should she use?

Non-probability
Systematic
Representative
Probability

Question 4

Dr. Raven wants to study anti-bullying programs in high schools in California. He randomly selects 5 in northern and southern California to receive program #1 and 5 in southern and northern California to receive program #2. What is this type of sampling technique?

simple
cluster
proportionate stratified random
All the above

Question 5

Dr. Ulrich wants to survey 100 people about their views on homelessness in an area where tourism is important to the local economy. He stands outside of a grocery store and wants to talk to 50 men and 50 women. Once he has surveyed 50 women and 23 men, he waits to talk to another 27 men, but no longer asks to speak to women. This is an example of what sampling technique?

Simple random
Quota
Target
Probability

Question 6

Which of the following questions can be answered using a descriptive strategy?

How do men and women differ in their ability to climb mountains on a road bike?
How does time on a trainer improve biking conditioning for one group over one group who do not do time on the trainer?
How many miles does a person riding a road bike need to do each week to improve resting heart rate?
What is the average number of protein snacks does the average road biker consume in a month?

Question 7

Which of the following is a decision that must be considered in designing a research study?

The number of variables to be included
The same participants or different ones
Groups versus individuals
All of the above

Question 8

College students participate in a study where they are asked to read resumes and select people for sales jobs in an organization. Based on this information, the researcher makes assumptions about attributes people look for in candidates for sales jobs. What is the problem with this design?

College students may not be representative of people who actually hire sales people.
Assumptions are being made across species.
Internal validity is threatened.
All of the above.

Question 9

Which of the following is a threat to internal validity?

participants all sharing same demographic characteristics
asking for volunteers for a research study
introducing more than one variable in the design of the study
All of the above

Question 10

A therapist reads a research study about a technique used with adult patients who are diagnosed with Major Depressive Disorder. She wonders if the same technique could be used with her patients who are children who have also been diagnosed with Major Depressive Disorder. What is the therapist questioning?

The design of the study
External validity of the study
Reliability of the study
Internal validity of the study

Question 11

Participants in a study are asked to take four hours of six different tests. Results of the last test are much lower than the rest of the tests. What could be an explanation for this lower test score?

Novelty effect
Sensitization
Fatigue effect
Time of measurement

Question 12

Researchers have found that women professors at universities get significantly lower pay than males colleagues. They publish results that women are being discriminated against. Upon further study, the department where they work makes a difference in pay. Business and engineering departments get paid more than those in history and philosophy, and there is no difference between the pay of males and females within the department. The department not being included in the first study is an example of what concept?

External validity
Demand characteristics
Confound
All of the above

Question 13

Which of the following is true?

Researchers tend to design studies with high internal validity, but low external validity
Researchers tend to design studies with low internal validity, but high external validity
Researchers tend to design studies with low internal validity, and low external validity
Researchers tend to design studies with high internal validity, and high external validity

Question 14

Researchers are observing how individuals are being treated at a local hospital. They sit in the waiting room and observe how long it takes for people to be checked in and then seen by a doctor. The researchers also observe how people are treated. This is example of what kind of study?

Selection bias study
Correctional
Field study
Laboratory study

Question 15

Researchers want to see if there is a difference between the empathy levels of 12-year-old boys and girls. What type of study assesses the difference in empathy between boys and girls without asking why there is a difference?

Correlational
Non-experimental
Experimental
Statistical Analysis

ANSWERS:

Question 1

Population
Sample
Accessible Sample
Subgroup

Correct Answer: Sample

Question 2

You are doing a mini experiment in a psychology class with 600 students. How would you randomly select your sample?

select people on the left side of the room
select individuals whose last names start with the letters A to L
put names in a hat and draw out the names of the first 300
all of the above

Correct Answer: put names in a hat and draw out the names of the first 300

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(Answer) PSYU 304 – Quiz 3