Question

A parametric test is the t-test. The researcher knows that what type of data can be used for this test?

a) interval

b) similar

c) paired

d) nominal

Answer 1

Answer ; interval data

EXPLANATION

• Parametric test is a statistical test in which specific assumptions are made about the population distribution from which the sample is drawn
• If the mean more accurately represents the center of the distribution of your data, and your sample size is large enough, use a parametric test
• interval data is measured along a scale, in which each point is placed at an equal distance (interval) from one another.
• The Independent Samples t Test compares the means of two independent groups in order to determine whether there is statistical evidence that the associated population means are significantly different.
• An independent samples t-test is used when you want to compare the means of a normally distributed interval dependent variable for two independent groups
• Nominal data is defined as data that is used for naming or labelling variables, without any quantitative value.
• Chi-squared test for nominal (categorical) data.
• A paired t-test is used to compare two population means where you have two samples in which observations in one sample can be paired with observations in the other sample.