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 1. [[FAQ/marginhom| How do I perform tests of Marginal Homogeneity between two raters measuring the same items?]

Questions on categorical data analysis

  1. What does a number containing an 'E' signify?

  2. How do I explain adding 0.5 to the cells for the odds ratio, d' or logit transform?

  3. What is heterogeneity of variance in SPSS Probit and Logit procedures?

  4. [[FAQ/marginhom| How do I perform tests of Marginal Homogeneity between two raters measuring the same items?]

  5. When should I use a logit analysis as opposed to an arcsine transformed ANOVA?

  6. How do I do a matched pairs comparison on dichotomous data using covariates in SPSS?

  7. How do I handle messy data in SPSS to produce duration times from dates and frequencies from strings?

  8. How do I get SPSS to do a Chi-squared analysis of a two-way frequency table?

  9. How do I compare a list of observed frequencies with a list of my own expected frequencies?

  10. Using a chi-square to see if two or more proportions are equal

  11. How do I know which elements contribute to a relationship in a two-way frequency table?

  12. When do I use Fisher's exact test instead of chi-square?

  13. How do I obtain Fisher's exact test and chi-square for a two-way table in EXCEL or a 2x2 table on the web?

  14. When do I use the correction for continuity when performing a chi-square analysis on a 2x2 table?

  15. How do I do a linear trend of proportions in a Chi-squared analysis in SPSS?

  16. How do I test for a strictly increasing or decreasing series on a set of individuals (not necessarily linear)?

  17. How do I test for the presence of an unknown ordering across subjects using 2 Dimensional data?

  18. How do I produce a bar chart with empty categories in SPSS?

  19. Improved Confidence Limits for a binomial proportion and differences in binomial proportions

  20. How do I compare observed numbers correct to those expected by chance in a multi-choice task?

  21. Additional kappa statistic evaluation in SPSS, benchmarks on size and a measure of inter-rater agreement based on Euclidean distances

  22. How do I summarise a fit for a logistic regression model?

  23. Why are the standard errors so large in logistic regression?

  24. Using an Odds Ratio to summarise a 2x2 frequency table

  25. How do I test an odds ratio?

  26. How do I combine proportions?

  27. Which discriminant analysis should I use to obtain thresholds to indicate levels of abnormality using a single variable?

  28. How do I plot and interpret a ROC curve in assessing strength in two group prediction?

  29. Can you recommend any two group discriminant diagnostics?

  30. How do I compute signal detection diagnostics?

  31. Can you recommend any statistical textbooks?

None: FAQ/cdaFAQ (last edited 2019-07-31 09:19:37 by PeterWatson)