QUESTIONS

Question 1

Dr. Terrazza designs a study where different types of therapy are provided for patients with alcohol addictions. He has 50 participants in two different groups. Group One is in a program where the patients are in group therapy two hours a day and life skill programs training the rest of the day. Group 2 is where the patients have one on one therapy twice a day and the rest of the day is spent in life skills programs. Dr. Terrazza measures individuals on motivation to succeed, personality, suicidality, and happiness in relationships. He tracks them over a five year period to see if they have continued to abstain from alcohol. What is the independent variable in this study?

The 50 participants
Type of therapy
Staying sober
Suicidality

Question 2

Herman is doing a study and decides he has to use randomization. What is he attempting to do?

Increase counterbalancing
Help control systematic confounds
Developing a strong independent variable
Avoiding confounds

Question 3

You are doing a mini experiment in a psychology class with 600 students. Each student takes a pretest and receives two treatments over time and a posttest. This is an example of what kind of design?

Between subjects design
Participant reactivity
Within subjects
All of the above

Question 4

Dr. Bonanza does a study where one group is provided with self confidence training and another is not. Both groups take assessments before the treatment and both groups take another assessment at the end of the study. What kind of control is being used in this study?

Placebo control
No-treatment control
Participant selection
None of the above.

Question 5

Dr. Fujima asks participants questions at the end of the study to find out what they thought of the study. Did they feel comfortable with the treatment? Did they enjoy themselves? Did they feel resentful? This is an example of what concept?

Simulation
Experimental realism
Manipulation check
All of these

Question 6

Dr. Terrazza designs a study where different types of therapy are provided for patients with alcohol addictions. He has 50 participants in two different groups. Group One is in a program where the patients are in group therapy two hours a day and life skill programs training the rest of the day. Group 2 is where the patients have one on one therapy twice a day and the rest of the day is spent in life skills programs. Dr. Terrazza measures individuals on motivation to succeed in staying sober, suicidal ideation, and happiness in relationships. He tracks them over a five year period to see if they have continued to abstain from alcohol. What is the dependent variable in this study?

Five years
50 participants
Happiness in relationships
Type of treatment

Question 7

Professor Killjoy has done a study that shows that people who report feelings of stress also eat junk food. It is unclear if the junk food leads to more feelings of stress or if stress leads to people eating more junk food. This is an example of what concept?

Directionality problem
Confounding variables
Extraneous variables
Manipulation

Question 8

Ricardo is doing a study where he is comparing two randomly assigned groups on how sounds can reduce stress levels. One group is provided with waves crashing on the beach. The other is listening to water in a bubbling creek. He finds no difference. What could he have done differently?

Select different participants
maximize the difference in the sounds provided to the groups
increase the differences of the people within each group
None of the above

Question 9

Subjects with a higher IQ are assigned to the experimental group, while those with a lower IQ are assigned to the control group. Professor Xiu wants to look at the differences after teaching creative problem solving skills to the group with the higher IQ. What is the most probable threat to internal validity?

No random assignment to groups
One group sets no treatment
Small sample size
None of the above

Question 10

Dr. Hernandez is doing a longitudinal study where she has two groups. After the first year, she has all the participants remaining in her study in Group 1. In Group 2, 50% have dropped out of the study. She is worried about the internal validity of her study. This is an example of what concept?

Resentful demoralization
Compensatory rivalry
Differential attrition
Compensatory equalization

Question 11

Which of the following is an example of data where you can not use an ANOVA (f-test)?

Name of occupation
Type of major in college
Rankings on a performance task
All of the above
None of the above

Question 12

Which of the following is an example of a way to minimize the variability within each group?

Treat all participants exactly the same
Limit individual differences within the group
Randomly assigning people to groups
Both 1 and 2
All of the above

Question 13

Company XXX wants to start a program to have all employees participate in volunteer activities in their community. Dr. Barrone is tasked with doing a study on whether providing a training about volunteer opportunities impacts volunteerism versus just telling people it is desired as a citizen. She collects information about current volunteerism, church attendance, family size, hours worked, and political affiliation. Three months after the training, she determines if the training has increased volunteer activities of the employees. How many dependent variables are in the study?

Question 14

Participants in Group 1 are given a new medication to treat depression. Participants in Group 2 are given a standard medication for depression and Group 3 is given no medication, but was given a sugar pill. After three months, six months, and a year, all participants are assessed for depression levels. The findings show that all three groups have no reported depression, even those who received a sugar pill. This is an example of what concept?

Compensatory rivalry
Placebo effect
Manipulation check
Diffusion

Question 15

Dr. Diecks has designed a study to determine which anti-bullying program is more effective. Group 1 is composed of three schools are provided with a training where individuals who were bullied come in and talk about their experiences. Group 2 includes three schools are provided with a training to teach how to be kind and to reach out to students who seem alone. Group 3 includes three schools are provided with a training on how to confront people who are bullying others. At the end of the training, Dr. Diecks creates a survey to find out which students are more equipped to help prevent bullying in their schools. The survey has 20 questions that are then added together to create an anti-bullying score. Dr. Diecks wants to compare the three different groups on this measure to determine which type of training is the best. What type of statistical analysis would Dr. Diecks need to use?

Independent measures t-test
Descriptive statistics
Correlation
Single factor analysis of variance

ANSWERS

Question 1

The 50 participants
Type of therapy
Staying sober
Suicidality

Correct Answer: Type of therapy

Question 2

Herman is doing a study and decides he has to use randomization. What is he attempting to do?

Increase counterbalancing
Help control systematic confounds
Developing a strong independent variable
Avoiding confounds

Correct Answer: Help control systematic confounds.

Question 3

You are doing a mini experiment in a psychology class with 600 students. Each student takes a pretest and receives two treatments over time and a posttest. This is an example of what kind of design?

Between subjects design
Participant reactivity
Within subjects
All of the above

Correct Answer: Within subjects

Question 4…

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(Answer) PSYU 304 – Week 4 Quiz