Quiz 12

Nonparametric statistics

1. Which condition is not required to perform a non-parametric test?

a) random sampling of population b) data are normally distributedc)

2. Which condition is not necessary before conducting an nonparametric test?

a) data must be normally distributed or nearlyb) groups must be independentc) data must come from random sampling

3. What is the significant correlation for a Spearman Rank r for =0.05 and 20 pairs of values?

a) 0.438b) 0.450c) 0.462d) 0.377

4. Which is the correct test to use when you want to compare three groups of different participants and the data are not normally distributed data?

a) Kruskall-Wallisb) t-test for independent groupsc) analysis of varianced) test of independence

5.

a) area under curve is equal to oneb) distribution is symmetricalc) is skewed positivelyd) it is asymptotic to the right

6.

a) there is at least one significantly different groupb) all groups are significantly differentc) all groups have equal means

7. Which post hoc test is the most conservative and has the least power?

a) Schefféb) Tukey HSDc) Bonferronid) Dunnett’s multiple range

8. Given the following SPSS output which is the correct conclusion?

a) E different from VGb) no differencesc) E different from Gd) VG different from G