PSY 340 Week 4 Quiz

PSY 340 Week 4 Quiz | Wilmington University

Question 1

A psychologist is interested to know which of two sorting techniques leads to better memory performance in 6-year-old children. Each participant first sorts a set of pictures any way he or she likes. Recall is then tested. After this, each participant is required to sort an equivalent set of pictures into five predetermined categories. Recall for the items is then tested. What procedure does this study represent?  

·         simple random assignment  

·         matched random assignment 

·         repeated measures 

·         combined measures

 

 Question 2

A design that assigns different participants to each condition using random assignment is a(n) design.  

·         repeated measures  

·         independent groups  

·         pretest-posttest  

·         Solomon four-group

 

 Question 3

Jeanne wants to know whether wearing sunglasses improves driving performance. If she uses an independent groups design, she would manipulate the variable by  

·         randomly requiring half the drivers to drive with sunglasses and the other half to drive without sunglasses.  

·         having half the drivers first drive without sunglasses and then with sunglasses and having the other half first drive with sunglasses and then without sunglasses.  

·         requiring all drivers to first drive with sunglasses and then without sunglasses.  

·         having all drivers first drive without sunglasses and then with sunglasses.

 

 Question 4

Hector measures participants based on a variable of interest and rank orders them according to their scores. He then places them in pairs in which each member has approximately the same score as the other member in the pair. The members of each pair are then randomly assigned to the conditions in the experiment. Hector's method of participant assignment is an example of a(n) design.  

·         independent pairs

·         Latin squares 

·         repeated measures  

·         matched pairs

 

 Question 5

When individuals participate in only one experimental condition, it is a(n) design. When individuals participate in all experimental conditions, it is a design.  

·         single group; full measure  

·         independent groups; repeated measures 

·         partial; whole 

·         group; multigroup

 

 Question 6

Sasha, a psychologist, has participants serve as their own control group by having them take part in every condition of her study. This experimental approach is an example of a(n)  

·         repeated measures design.  

·         simple random design.  

·         one-shot case study.  

·         independent groups design.

 

 Question 7

A researcher investigated the relationship between alcohol intake and reaction time using a driving simulation task. Participants drank either one ounce or three ounces of alcohol. Their reaction time was measured in terms of the speed with which they applied brakes on seeing a red light during the simulated driving task. In this scenario, the dependent variable in the experiment is the  

·         red light.  

·         amount of alcohol.  

·         degree of intoxication.  

·         speed of applying brakes.

 

 Question 8

In the context of psychological research, the variable that is considered to be the cause is called the variable.  

·         hypothetical

·         independent  

·         operational 

·         mediating

 

 Question 9

Tiana, a researcher, investigated the relationship between the length of a test and the grades in a western civilization course. After randomly assigning students to groups, she found that the students who took longer exams received better grades than students who took shorter exams. In this scenario, the independent variable is the  

·         test grades.  

·         length of the test.  

·         gender of the students.  

·         class size.

 

 Question 10

In an experiment, a group of participants ate ice cream that was packaged in a red carton and another group of participants ate ice cream of the same flavor packaged in a green carton. Participants were asked to rate the ice cream on a scale of 1 to 5. In this scenario, the independent variable is the  

·         color of the carton.  

·         participants' ratings.  

·         gender of the participants.  

·         flavor of the ice cream.