18166727
Descripción
Test por Katie Morbey, actualizado hace más de 1 año
|
Creado por Katie Morbey
hace más de 5 años
|
|
Pregunta 1
Pregunta
Assuming the data meet the assumptions of parametric tests, non-parametric tests, compared to their parametric counterparts ___________
Respuesta
-
Have less statistical power
-
All of the above
-
Are less likely to accept the alternative hypothesis
-
Are more conservative
Pregunta 2
Pregunta
A researcher measured leadership skills in police officers, doctors, and accountants. The data were skewed. What is the most appropriate test to analyse the data?
Respuesta
-
Mann-Whitney test
-
Kruskal-Wallis test
-
Friedman test
-
Wilcoxon test
Pregunta 3
Pregunta
The results of the test used to analyse the data described in Question 2 showed a significant result. How should the researcher carry out post-hoc tests?
Respuesta
-
Compare groups using the Mann Whitney test
-
Compare groups using the Wilcoxon test
-
Compare groups using a t-test
-
None of the above. Post-hoc analyses cannot be carried out with non-parametric data
Pregunta 4
Pregunta
An advantage of non-parametric statistics is that _________
Respuesta
-
You need a computer to calculate them
-
They are very powerful
-
They have many assumptions to meet
-
They are easy to calculate
Pregunta 5
Pregunta
Which of the following tests is analogous to a standard within-subjects ANOVA?
Respuesta
-
Wilcoxon
-
Kruskal-Wallis
-
Friedman
-
Mann-Whitney
Pregunta 6
Pregunta
Tied scores (when two or more scores have the same value) may present a problem in non-parametric tests. The way to deal with them in a Kruskal-Wallis test is to ____________
Respuesta
-
Assign any tied values the lower of the ranks they would have received had they not been tied
-
Use a random number table to assign ranks to the tied values
-
Throw out the tied data
-
Assign any tied values the average of the ranks they would have received had they not been tied
Pregunta 7
Pregunta
A dataset contains the following values: 23, 28, 37, 23, 45, 49, 37, 62. Rank the values. Which rank is associated with value 37?
Respuesta
-
4.5
-
6
-
3.5
-
4
Pregunta 8
Pregunta
Researchers wanted to examine whether the ‘see-food’ diet was effective. A group of volunteers were placed on the diet and their weight (in kilograms) was measured at the beginning of the diet, after 1 month, after 2 months, then at the end of the diet after 3 months. The data were not normally distributed. Which test would be appropriate to analyse this data?
Respuesta
-
Mann-Whitney
-
Wilcoxon
-
Friedman
-
Kruskal-Wallis
Pregunta 9
Pregunta
n a Kruskal-Wallis test, the _________ the value of H, the more likely you are to reject the null hypothesis
Respuesta
-
More negative
-
Smaller
-
H is not relevant for the Kruskal-Wallis test
-
Larger
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.