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
Parametric criteria and choosing a non-parametric test
- 4 things to know
- Component 01
Overview
Recall questions on the criteria for parametric tests, the criteria for the Mann-Whitney U, Wilcoxon, Chi-square, Binomial Sign and Spearman's rho tests, choosing a test for example studies, and comparing observed and critical values.
What you need to know
Answer each one before you reveal it.
State the three criteria for using a parametric test.
Which test suits a study comparing how many men and how many women helped a stranger?
For Chi-square and Spearman Rho, what must be true of the observed value for the result to be significant?
Questions from this subtopic
Each one with the model answer underneath.
- 1
State the three criteria for using a parametric test.
Model answer
The data must be at interval level, drawn from a normally distributed population, and the two sets of scores must have similar variances.
- 2
Give one advantage of a parametric test over a non-parametric test.
Model answer
It is more powerful, so it is more likely to detect a genuine effect that is present in the data.
- 3
State the criteria for using the Mann-Whitney U test.
Model answer
It is used to test for a difference where the design is independent measures and the data are at least ordinal.
- 4
State the criteria for using the Wilcoxon Signed Ranks test.
Model answer
It is used to test for a difference where the design is repeated measures or matched participants and the data are at least ordinal.
- 5
State the criteria for using the Chi-square test.
Model answer
It is used to test for a difference or an association where the data are nominal frequencies and the sets of data are independent.
- 6
State the criteria for using the Binomial Sign test.
Model answer
It is used to test for a difference where the design is repeated measures or matched participants and the data are nominal.
Other ways to work this
The same content, four other ways.
What is inside Levo
Six ways to work the same material.
Every question in Data Recording, Analysis and Presentation, on a schedule.
Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.
Or £46 a year, about £3.83 a month. Cancel anytime.