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
Selecting an inferential test
- 3 things to know
- Component 01
Overview
Recall questions on what must be known before using a table of critical values, the three questions for choosing an inferential test, which test fits each design and level of data, parametric criteria, and why non-parametric tests are common.
What you need to know
Answer each one before you reveal it.
Why are non-parametric tests used so widely in psychology?
Which test is used for a difference between two conditions with an independent measures design and ordinal data?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What must be worked out from the data before a table of critical values can be consulted?
Model answer
The observed value of the chosen test statistic must be calculated from the data, because it is that figure which is compared with the critical value.
- 2
Name the three questions that determine which inferential test to use.
Model answer
Whether the study looks for a difference or a relationship, which experimental design was used, and what level of measurement the data is at.
- 3
Which test is used for a difference between two conditions with an independent measures design and ordinal data?
Model answer
The Mann-Whitney U test.
- 4
Which test is used for a difference between two conditions with a repeated measures or matched participants design and ordinal data?
Model answer
The Wilcoxon signed ranks test.
- 5
Which test is used for a difference or association between categories with nominal data from independent groups?
Model answer
The chi-square test.
- 6
Which test is used for a difference with a repeated measures design and nominal data?
Model answer
The binomial sign test.
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