One-Way Analysis of Variance (One-Way ANOVA) The objectives of this lesson are to learn: • the definition/purpose of One-Way Analysis of Variance • the use of One-Way ANOVA • the use of SPSS to complete a One-Way Analysis of Variance • the interpretations of results Definition One-Way ANOVA involves examination of the significant differences between means of three or more groups on one factor or dimension. For example, you might want to know whether five groups of people (below 20, 21-30, 31-40, 41-50, above 50) differ in their living expenses (per month). When to Use One-Way ANOVA Any analysis where: • There is only one dimension or factor (dependent variable) • There are three or more groups of the factor (independent variable) • One is interested in looking at mean differences across these groups Assumptions: • Steps for a One-Way ANOVA Using SPSS We will use a step-by-step approach to go through the steps for a one-way ANOVA using SPSS statistical analysis package. Here is the background information of the sample data we are using here. Number of subjects: 60 Independent variable (Factor): Primary disability types including Physical (code = 1), mental (code = 2), and intellectual (code = 3) disabilities.
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One-Way Analysis of Variance (One-Way ANOVA)
The objectives of this lesson are to learn:
• the definition/purpose of One-Way Analysis of Variance
• the use of One-Way ANOVA
• the use of SPSS to complete a One-Way Analysis of Variance
• the interpretations of results
Definition
One-Way ANOVA involves examination of the significant differences between means of
three or more groups on one factor or dimension. For example, you might want to know
whether five groups of people (below 20, 21-30, 31-40, 41-50, above 50) differ in their
living expenses (per month).
When to Use One-Way ANOVA Any analysis where:
• There is only one dimension or factor (dependent variable)
• There are three or more groups of the factor (independent variable)
• One is interested in looking at mean differences across these groups
Assumptions:
• Steps for a One-Way ANOVA Using SPSS We will use a step-by-step approach to go through the steps for a one-way ANOVA using
SPSS statistical analysis package. Here is the background information of the sample data