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
Mathematical Requirements for Research Methods
Identifying levels of measurement in quantitative and qualitative data
- 2 things to know
- Component 01
Overview
Recall questions on what is lost converting interval to ordinal data, identifying the level of measurement in example studies, the level of qualitative data, weaknesses of quantitative and qualitative data, and converting transcripts into numbers.
What you need to know
Answer each one before you reveal it.
What is lost when interval data is converted into ordinal data for a test?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is lost when interval data is converted into ordinal data for a test?
Model answer
The actual size of the differences between scores, since only their rank order is retained.
- 2
A researcher records whether each participant is left-handed or right-handed. State the level of measurement.
Model answer
It is nominal, because participants are simply allocated to named categories.
- 3
Runners are recorded as finishing first, second and third. State the level of measurement and justify it.
Model answer
It is ordinal, because the positions are ranked but the time gaps between them are unequal and unknown.
- 4
A study records the number of words each participant recalled. Is this quantitative or qualitative data, and at what level of measurement?
Model answer
It is quantitative data at the interval level, because the scores are numerical and counted in equal units.
- 5
What level of measurement does qualitative data have before it is analysed?
Model answer
It has none, because it is not numerical, so it acquires a level of measurement only once it is coded into categories and counted.
- 6
Give one weakness of quantitative data.
Model answer
It reduces experience to numbers, so it can establish that a difference exists without showing why participants behaved as they did.
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