What is the purpose of the McNemar test?Question 1Answera.It is similar to chi-square but the McNemar test allows us to test independent samples instead of repeated measuresb.It is used for post-hoc analysis after a chi-square testc.It corrects for small samples sizes to give a more accurate result for the chi-square analysis when cell size is less than 5d.It compares the relative frequency of two alternative outcomes within the same sample e.g. before and after treatment

Which statement is not true about both the chi-square and McNemar test?Question 12Answera.Both tests are used on frequency data (or counts)b.The data in separate cells of the contingency table must come from different participants (independent sample)c.The test statistic is based on comparing the observed frequency of an event, with the expected frequency of the event if the null hypothesis is trued.They are non-parametric tests

he chi-square test is used to determine:a.The difference between two population meansb.The relationship between two categorical variablesc.The correlation between two continuous variablesd.The significance of the sample sizeClear my choice

A researcher is interested in student characteristics based on their degree programme. As part of her study, she investigates whether psychology and maths students are equally likely to have been to a bar over the previous weekend. Her survey provides the frequency of going to a bar or not going to a bar for a sample of 90 psychology students and 90 maths students. What type of test can she carry out on the data?Question 8Answera.Chi-Square Testb.McNemar Testc.Independent Sample T-Testd.Pearson's correlation

It also allows a comparison of the variation between two different samples.

What does a chi-square test compare?Question 4Answera.the frequency of incorrect responses for each variableb.correct and incorrect reaction timesc.the observed and total frequencies for each individual participantd.the observed and expected frequencies for each cell