Levels of Measurement- RESEARCH METHODS

Question 1

Nominal level data

Answer 1

• Involves simply counting the number of subjects that did one thing or another, or fall into this category or that
• Numbers here refer to frequency with which something occurs
• Only use MODE

Question 2

Ordinal level data

Answer 2

• Items may be placed in some rank order
• Represent positions within a group- they tell us which is first, second and third
• Appropiate to use MEDIAN and RANGE

Question 3

Interval level data

Answer 3

• Uses equal intervals
• Highest level of data
• Have a unit- m, mm, IQ
• Measures of dispersion- standard deviation