METHODS OF DATA ANALYSIS
PARAMETRIC AND NON PARAMETRIC TESTS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The following are conditions in performing parametric test for two or more groups except:
|
|
Data must be normally distributed
|
|
|
Categories are mutually exclusive
|
|
|
Variance must be homogenous
|
|
|
There should be 2 or more independent groups
|
Explanation:
Detailed explanation-1: -An independent-group t test can be carried out for a comparison of means between two independent groups, with a paired t test for paired data. As the t test is a parametric test, samples should meet certain preconditions, such as normality, equal variances and independence.
Detailed explanation-2: -The Spearman rank-order correlation coefficient is a nonparametric statistics measure of the strength and direction of the relationship between two variables assessed on an ordinal scale.
There is 1 question to complete.