This Chi-Square test is used to determine if the distribution from a sample fits a known or hypothesized distribution. For example, determining if Skittle flavors are equally preferred.
Running Chi-Square Goodness-of-Fit in SPSS
NOTE: these steps are for summated frequencies, not raw data
*If your data is not summated, you'll want to use Analyze > Descriptive Statistics > Frequencies to first compute the frequencies for each group. Then, set up your data as indicated above.*
Interpreting the Output
Reporting Results in APA Style
A chi-square goodness-of-fit test was conducted to determine if the proportion of people suffering from depression differs based on marital status. There was not sufficient evidence to reject the hypothesis that the proportions were equal X^2(1, N = 92) = 2.4, p = .35.