PS1812 revision 0.0 / 5 ? PsychologyDevelopmental PsychologyUniversityOther Created by: k4te18Created on: 14-05-18 12:22 What is a potential risk when conducting research? Psychological stress 1 of 16 When conducting observational research, do you need consent? No 2 of 16 What is experimental bias? When researcher's expectations influence study outcomes 3 of 16 Time of day is an example of which measurement scale? Interval 4 of 16 Which measurement scale involves replacing categories with numbers in order to analyse data? Nominal 5 of 16 What does chi-square do? Compares response frequencies 6 of 16 Is chi-square a parametric or non-parametric test? Non-parametric 7 of 16 What does the null hypothesis mean? There is no association between the variables 8 of 16 What are the values we actually obtained? Observed frequencies 9 of 16 What are the expected frequencies? Values we would expect to see if the null hypothesis was true 10 of 16 What does mutual exclusivity mean? Each observed person/ case must appear in only one data cell 11 of 16 What is variance? An estimate of average variability of a data set 12 of 16 Why do we use variance? To work out the ratios between the variance of what we are interested in and what we are not interested in 13 of 16 When is a test significant? P 14 of 16 How do you calculate the F ratio? Variance between divided by variance within 15 of 16 What would you use Mauchly's test of sphericity for? To check there is homogeneity of variance 16 of 16
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