Chapter Eight - Hypothesis Testing and
Effect Size: One-Sample Designs
Chapter
Objectives
- Explain the procedure called hypothesis testing
- Define the null hypothesis with words
- Define three alternative hypotheses with words
- Define a , significance level, rejection region,
and critical value
- Use a one-sample t -test to decide if a sample mean
came from a populatio with a hypothesized mean
- Decide if a sample r came from a population in which
the correlation between the two variables is zero
- Interpret the meaning of "p" in the phrase,
p<.05
- Explain what rejecting the null hypothesis means and what
retaining the null hypothesis means
- Distinguish the difference between a one-tailed and a
two-tailed statisical test
- Calcualte and interpret an effect size index
Chapter Oultine
- Hypothesis Testing - An Example Problem
- The Logic of Hypothesis Testing
- Using the t Distribution for Hypothesis Testing
- A {roblem and the Accepted Solution
- The One-Sample t Test
- An Analysis of Potential Mistakes
- The Meaning of p in p<.05
- One- and Two-Tailed Tests
- Effect Size
- Other Sampling Distributions
- Using the Distribution to Test the Significance of a
Correlation Coefficient
- Why .05?
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Statistics