A researcher would like to evaluate the effectiveness of a treatment program designed to reduce aggressiveness in domestic violence offenders. Prior to participating in the program, each of n = 8 participants has their aggressiveness rated on a scale from 1 to 10 by a clinical psychologist. After participating in the program, a second aggressiveness rating is recorded. The data are below. Using this information answer the questions below. BeforeAfter 62 83 94 81 102 53 98 77 Do the results indicate that the program has a statically significant effect?Compute r2 and interpret the size of the effect.Write up the results of the t test following the American Psychological Association (APA) guidelines.

The hypothesis test is a statistical method in which one using the sample data try to check the…

Answered: A researcher would like to evaluate the…

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher would like to evaluate the effectiveness of a treatment program designed to reduce aggressiveness in domestic violence offenders. Prior to participating in the program, each of n = 8 participants has their aggressiveness rated on a scale from 1 to 10 by a clinical psychologist. After participating in the program, a second aggressiveness rating is recorded. The data are below. Using this information answer the questions below.