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Exam performance study. In Teaching of Psychology (August
Chapter 9, Problem 13E(choose chapter or problem)
Problem 13E
Exam performance study. In Teaching of Psychology (August 1998), a study investigated whether final exam performance is affected by whether students take a practice test. Students in an introductory psychology class at Pennsylvania State University were initially divided into three groups based on their class standing: Low, Medium, or High. Within each group, students were randomly assigned to either attend a review session or take a practice test prior to the final exam. Thus, six groups were formed: (Low, Review), (Low, Practice exam), (Medium, Review), (Medium, Practice exam), (High, Review), and (High, Practice exam). One goal of the study was to compare the mean final exam scores of the six groups of students.
a. What is the experimental unit for this study?
b. Is the study a designed experiment? Why?
c. What are the factors in the study?
d. Give the levels of each factor.
e. How many treatments are in the study? Identify them.
f. What is the response variable?
Questions & Answers
QUESTION:
Problem 13E
Exam performance study. In Teaching of Psychology (August 1998), a study investigated whether final exam performance is affected by whether students take a practice test. Students in an introductory psychology class at Pennsylvania State University were initially divided into three groups based on their class standing: Low, Medium, or High. Within each group, students were randomly assigned to either attend a review session or take a practice test prior to the final exam. Thus, six groups were formed: (Low, Review), (Low, Practice exam), (Medium, Review), (Medium, Practice exam), (High, Review), and (High, Practice exam). One goal of the study was to compare the mean final exam scores of the six groups of students.
a. What is the experimental unit for this study?
b. Is the study a designed experiment? Why?
c. What are the factors in the study?
d. Give the levels of each factor.
e. How many treatments are in the study? Identify them.
f. What is the response variable?
ANSWER:Problem 13E
Exam performance study. In Teaching of Psychology (August 1998), a study investigated whether final exam performance is affected by whether students take a practice test. Students in an introductory psychology class at Pennsylvania State University were initially divided into three groups based on their class standing: Low, Medium, or High. Within each group, students were randomly assigned to either attend a review session or take a practice test prior to the final exam. Thus, six groups were formed: (Low, Review), (Low, Practice exam), (Medium, Review), (Medium, Practice exam), (High, Review), and (High, Practice exam). One goal of the study was to compare the mean final exam scores of the six groups of students.
a. What is the experimental unit for this study?
b. Is the study a designed experiment? Why?
c. What are the factors in the study?
d. Give the levels of each factor.
e. How many treatments are in the study? Identify them.
f. What is the response variable?
Step-by-step solution
Step 1 of 6
A study investigated whether final exam performance is affected by whether students take a practice test. Students in an introductory psychology class at Pennsylvania State University were initially divided into three groups based on their class standing: Low, Medium, or High. Within each group, students were randomly assigned to either attend a review session or take a practice test prior to final exam. Thus six groups were formed. The goal of the study was to compare the mean final exam scores of the six groups.
a) The experimental unit for this study is student.