A+ TUTORIAL FOR THE FOLLOWING EXERCISES

WEEK 6 EXERCISES

Enter your answers in the spaces provided. Save the file using your last name as the beginning of the file name (e.g., ruf_week6_exercises) and submit via Assignments. When appropriate, show your work.

1.Using the following table, provide three examples of a simple one-way ANOVA, two examples of a two-factor ANOVA, and one example of a three-factor ANOVA. Be sure to identify the grouping and the test variable (just like the book).

DesignGrouping Variable(s)Test Variable

Simple ANOVAFour levels of hours of training 2, 4, 6, and 8 hours

Two-factor ANOVATwo levels of training and gender (2 x 2 design)

Three-factor ANOVATwo levels of training and two of gender and three of income

1. A researcher reports an F-ratio with df= 2, 12 for a repeated measures of ANOVA.

a.How many treatment conditions were compared in the study?

b.How many individuals participated in the study?

1. An analysis of variance was used to evaluate the mean differences from a repeated-measures research study. The results were reported as F(3,24)=6.40.

a.How many treatment conditions were compared in the study?

b.How many individuals participated in the study?

4.Create a drawing or plan for a 2 x 3 experimental design that would lend itself to a factorial ANOVA. Be sure to identify the independent and dependent variables.

1. First-born children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that first-borns have undivided attention from their parents. If this explanation is correct, then it also reasonable that twins should show slower language development than single children and that triplets should be even slower. Davis found exactly this result. The following hypothetical data demonstrate the relationship. The dependent variable is a measure of language skill at age 3 for each child. Do the data indicate any significant differences? Test with ?=0.05.

Single childTwinTriplet

844

764

1077

642

993

The deadline for this assignment is 11:59 PM EST on Sunday of Week 6