PSY230: Factorial Analysis of Variance Summer 2017 Section 1: Multiple Choice Ch

Question

PSY230: Factorial Analysis of Variance Summer 2017 Section 1: Multiple Choice Choose the best answer and enter the corresponding letter into Bb Learn. 1. In the parlance of ANOVAs, the word factor denotes the a. Dependent variable. b. Independent variable. c. Confounding variable. d. Extraneous variable. You're exploring the differences in examination scores (DV) associated with varying amounts of sleep (IV). You categorize the amount of sleep into groups: and "low." In terms of the use of an ANOVA, these groups are called a. levels b. factors c. confounds d. variables 2. "high, "modium 3. Which of the following is true regarding a 2 X 3 factorial ANOVA? You will conduct two separate one-way ANOVAs, cach of which has three levels of a single factor The analysis of variance includes two factors. The first factor has two levels and the second has three. The analysis of variance includes a single factor with two levels. There are three participants in each group a. b. c. d. The factorial ANOVA will test two primary hypotheses and three secondary hypotheses Which of the answers best describes the type of ANOVA required to analyze the data depicted in the table? 4. Hours of Sleep the Night Before Exam 4-6 hours More than 6 hours 0-3 hours Exam Grade Exam Grade Exam Grade Caffeine Intake |200 mg Exam Grade Exam Grade Exam Grade Exam Grade Exam GradeExam Grade 0 mg Before Exam 400 mg 400 mg a. 2x2 b. 3 X2 c. 2X3 d. 3X3 © Arizona Board of Regents, 2017 All rights reserved 170

Explanation / Answer

1) The two independent variables in a two-way ANOVA are called factors. The idea is that there are two variables, factors, which affect the dependent variable. Each factor will have two or more levels within it, and the degrees of freedom for each factor is one less than the number of levels.

So, answer is option B

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