Research Methods -> Statistical Tests

Question 1

Nominal data

Answer 1

Nominal data can be referred to as categorical data. If the data is nominal, then each participant will only appear in one category. This is called discrete data.

Question 2

Ordinal data

Answer 2

data is ordinal if it is ordered in some way and the intervals between the data are not equal. Typically, this is used to simply rank data where the values assigned have no meaning beyond the purpose of stating where one score appeared.

Question 3

Interval data

Answer 3

Interval data is like ordinal data in that it also refers to data that is ordered in some way. However, with interval data we are confident that the intervals between each value are equal in measurement.

Question 4

Parametric tests vs non-parametric tests

Answer 4

Parametric tests are more robust and powerful than non-parametric tests. They rely on the actual data collected rather than just examining the rank order of the data. Parametric tests are also more likely to detect if the data is significant or not.