In this lecture, Prof. Naomi Lowe explains the types of chi-square, tests of chi-squares, and how articles report the chi-square statistic.
Use a chi-square when you have a nominal variable. Learn the formula that tests the predetermined fit of the difference categories of a single variable. Determine degrees of freedom and cut-off, and accept or reject the null.
When using two nominal variables that have several categories, examine whether there is a relationship between the variables; create a contingency table. Calculate expected values and compare chi-square test statistic to chi-square distribution cut-off. Use phi for effect size in a 2x2 contingency table, and Cramer's Phi for larger tables.
Review chi-square use, goodness of fit, and test of independence. See a portion of the chi-square table.
Lowe explains a typical representation of chi-square in an article.
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In this video lecture, Professor Naomi Lowe explains the chi-square test.
Length: 33 minutes
Copyright date: ©2010
Prices include public performance rights.
Not available to Home Video and Publisher customers.
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