Answered: An Organizational psychologist…

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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Question

An Organizational psychologist hypothesizes that after groups go through the Chaos stage, there will be a short window in which the group will function optimally. This is considered a honeymoon period, where the excitement of working with new people adds to the group’s ability to solve complex problems. After this period the group members becomes used to each other, the excitement is gone and so it the extra boost to problem solving.

She tests this hypothesis by having 20 groups (of five people) solve complex problems every hour for 5 hours. She predicts that the Chaos period will affect the first solution, the honeymoon period will affect the 2^nd and 3^rd solutions, and performance on the 4^th and 5^th will then drop.

She finds that F (4, 15) = 5.80, p<.01, partial-eta-squared = 0.25.

With the following conditional means:

Problem 1	Problem 2	Problem 3	Problem 4	Problem 5
3.2	5.0	5.1	4.4	3.8

Tukey post hoc tests were conducted between the condition means. All means were significantly different (ps < .05) from each other.

Evaluate her study. Does the study and its results support her hypothesis? Why or why not?

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