Answered: A 3 x 3 factorial design could be an…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A 3 x 3 factorial design could be an example of which of the following?

Question 1

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A group of cognitive psychologists were interested in testing whether learning in the testing environment improves memory retention (i.e., test scores) in a scuba diving class. To test this, the experimenters manipulated learning location such that half of the class learned the course material in a standard classroom and the other half learned the material in a pool. In addition, the experimenters manipulated testing location such that half of the class were tested in the classroom and half were tested in the pool. Thus, a 2 x 2 design was used.

Which statistical test should be used?

Question 2

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A group of health conscious researchers were interested in ways to lower blood pressure. The study consisted of 90 participants. 30 participants were randomly assigned to eat a heart healthy diet, 30 were randomly assigned to a heart healthy exercise routine, and 30 were randomly assigned to do nothing and serve as a control. After a month of their assigned intervention, participants' blood pressure was measured. Which statistical test should be used to compare the 3 intervention types on post-treatment blood pressure?

Question 3

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A group of scientists from the marketing department of a major cola company ran a "Pepsi Challenge" with 3 different cola brands. The study consisted of 20 participants. All 20 participants tasted each of the 3 colas (in a randomly assigned counterbalanced order) and rated the quality of the cola on a Likert scale. Which statistical test should be used?

Question 4

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A local pasty company ran a taste test with 3 different pasty recipes. The study consisted of 60 participants. 20 participants were randomly assigned to taste recipe 1, 20 were randomly assigned to taste recipe 2, and 20 were randomly assigned to taste recipe 3. After tasting their assigned pasty, participants rated the quality/tastiness of the pasty on a Likert scale. Which statistical test should be used?

Question 5

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A professor was interested in studying how academic major (Psychology vs. Chemistry) is related to creativity (assessed by a creativity questionnaire). Which statistical test should be used to for difference between psychology and chemistry majors in creativity?

Question 6

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A researcher was interested in studying how gender (male vs. female) and depression (depressed vs. non-depressed) affect working memory. Male and female participants were selected for high and low levels of depression and working memory was measured with the n-back task. Which statistical test should be used to assess the effects of gender and depression on working memory?

Question 7

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

A study tested the effects of 4 different dosages of a new antidepressant on reducing depressive symptoms in one group of depressed participants. The order of the four dosages was counterbalanced across participants. Which statistical test should be used?

Question 8

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options

Dr. Carlson has been monitoring all stats students' anxiety levels by covertly measuring micro-expressions with in-class video surveillance during each exam (including this one!). Dr. Carlson wants to determine if anxiety levels differed across the three exams. Which statistical test should be used?

Question 9

Select one:

One-way between subjects ANOVA

One-way repeated measures ANOVA

Two-way between subjects ANOVA

None of these options