![]() A graph that basically tells the whole story for two dichotomous variables measured on the same respondents is a 3-d bar chart. ![]() Quick Data Checkīefore jumping into statistical procedures, let's first just take a look at the data. The null hypothesis is that both percentages are equal in the population. The proportion of respondents answering “yes, I'd consider buying this” indicates the level of appeal for each of the two products. He asks 20 participants to try out both products and indicate whether they'd consider buying each products (“yes” or “no”). SPSS McNemar Test ExampleĪ marketeer wants to know whether two products are equally appealing. The two variables have been measured on the same cases. SPSS McNemar test is a procedure for testing if the proportions of two dichotomous variables are equal in some population. SPSS McNemar Test By Ruben Geert van den Berg under Nonparametric Tests & Statistics A-Z
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