OCR A-Level Psychology H567
Research Methods and Techniques
Planning and Conducting Research
Data Recording, Analysis and Presentation
Report Writing and Scientific Communication
Practical Activities and the Nature of Science
Mathematical Requirements for Research Methods
Studying and Evaluating the Core Studies: The Common Framework
Core Studies: Social Area
Core Studies: Cognitive Area
Core Studies: Developmental Area
Core Studies: Biological Area
Core Studies: Individual Differences Area
Areas and Perspectives in Psychology
Debates in Psychology
Practical Applications of Psychology
Issues in Mental Health
Child PsychologyApplied option
Criminal PsychologyApplied option
Environmental PsychologyApplied option
Sport and Exercise PsychologyApplied option
Methodological Issues and Debates Running Through Applied Psychology
Data Recording, Analysis and Presentation
Nominal, ordinal and interval data
- 3 things to know
- Component 01
Overview
Recall questions on nominal, ordinal and interval data with examples, why rating scales give ordinal data, which level carries most information, and which measure of central tendency suits each level.
What you need to know
Answer each one before you reveal it.
Which measure of central tendency is appropriate for nominal data, and why?
What is nominal data?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is nominal data?
Model answer
Data in the form of counts of how many items or people fall into separate, named categories.
- 2
Give an example of nominal data collected in a psychological study.
Model answer
The number of participants choosing each of three possible answers to a question.
- 3
What is ordinal data?
Model answer
Data that can be placed in rank order, but where the intervals between the points are not known to be equal.
- 4
Give an example of ordinal data.
Model answer
Ratings of how anxious participants feel on a scale from 1 to 10.
- 5
Why is a rating scale score treated as ordinal rather than interval?
Model answer
The difference between 1 and 2 on the scale is not necessarily the same size as the difference between 8 and 9.
- 6
What is interval data?
Model answer
Data measured on a scale with equal, fixed units between the points.
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