PSYCH295ClassBriefingsCh16Spr11

PSYCH295ClassBriefingsCh16Spr11 - Chapter 16: The...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 16: The Chi-Square Statistic Hypothesis tests used thus far tested hypotheses about population parameters Parametric tests share several assumptions Normal distribution in the population Homogeneity of variance in the population Numerical score for each individual Nonparametric tests are needed when the research situation does not conform to the requirements of parametric tests.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 16: The Chi-Square Statistic Do not state the hypotheses in terms of a specific population parameter Make few assumptions about the population distribution Often termed distribution free tests Participants usually classified into categories Nominal or ordinal scales are used Data for nonparametric tests are frequencies
Background image of page 2
Chapter 16: The Chi-Square Statistic The Chi-Square for Goodness of Fit Test Uses sample data to test hypotheses about the shape or proportions of a population distribution. The test determines how well the obtained sample proportions fit the population proportions specified by the null hypothesis.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 16: The Chi-Square Statistic The Chi-Square for Goodness of Fit Test The null hypothesis (H 0 ): Specifies the proportion (or percentage) of the population in each category, and will generally fall into one of the following categories: No preference: » States that there is no preference among the different categories, or that the population is divided equally among
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 14

PSYCH295ClassBriefingsCh16Spr11 - Chapter 16: The...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online