# Unit 7 Children with Disabilities - Two Way ANOVA Research question

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Mathematics

## Description

In Unit 6, you developed three different research questions that could be addressed using a one-sample, dependent samples, or independent samples t-test. In Unit 7, you expanded the research question that should be addressed using the independent samples t-test, to include more than two groups. In this unit you will further expand your One-Way ANOVA question to include two independent variables.

1. Two-Way (factorial) ANOVA: Expand your research question from Unit 7 to include a second independent variable with at least two groups (levels). Write out your new expanded research question. List and describe both of your independent variables and the levels or groupings within each independent variable. Also note your dependent variable.
2. Define your Choices: Why you have chosen to investigate these two independent variables? How do you think they will affect your dependent variable?
3. Testing and Predicted Results: What type of interaction do you expect to see between your independent variables? How might this interaction affect the dependent variable?
4. Predict Results: Predict and share your hypothetical results and conclusions for all of your groups and interactions. Write a paragraph describing the final conclusion of your research assuming that you reject all of the null hypotheses (Ho1, Ho2, and Ho3). Be sure to talk about what the Post Hoc test might show in this case and the possible interactions between your two independent variables with respect to your dependent variable. While you are welcome to use SPSS, it is not required for this Discussion.

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Children with Disabilities – Two Way ANOVA
For my project, I want to compare the average of grades for 3rd-grade boys and girls
with disabilities from Riverside Elementary School with the grades of 3 rd-grade boys and
girls without disabilities from three elementary schools in New Jersey (Riverside
Elementary School, Roosevelt Elementary School and Lincoln Elementary School). The
Two-Way ANOVA test is appropriate for my research objective because I am comparing
simultaneously more than two means, and the sample is defined in two ways by two
independent variables (disability and gender). The dependent variable is the 3rd-grade...

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