AQA A-Level Psychology 7182
Social Influence
Memory
Attachment
Approaches in Psychology
Biopsychology
Clinical Psychology and Mental Health
Research Methods
Scientific Processes
Quantitative and Qualitative Data
Data Handling and Analysis
Inferential Testing
Issues and Debates in Psychology
RelationshipsOption 1
GenderOption 1
Cognition and DevelopmentOption 1
SchizophreniaOption 2
Eating BehaviourOption 2
StressOption 2
AggressionOption 3
Forensic PsychologyOption 3
AddictionOption 3
Explanations for Nicotine AddictionOption 3
Inferential Testing
The sign test
- 4 things to know
- Paper 2
Overview
When the sign test is used, how the calculated value of S is worked out from the data, and how the hypothesis determines the comparison made.
What you need to know
Answer each one before you reveal it.
How is the sign test calculated?
How does the hypothesis affect which sign test is used?
A study gives 17 plus signs and 13 minus signs. What is the calculated S?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is the sign test?
Model answer
A non-parametric inferential statistical test used to determine whether there is a significant difference between two related conditions.
- 2
What type of research design is the sign test used with?
Model answer
Repeated measures or matched pairs designs.
- 3
What is the minimum level of measurement required for data to use the sign test?
Model answer
Nominal level of measurement.
- 4
Does the sign test look for a difference between conditions or a correlation between variables?
Model answer
A difference between conditions.
- 5
When calculating the sign test, what is the first step involving each participant's scores?
Model answer
Compare each participant's score in condition A with their score in condition B.
- 6
In the sign test calculation, what sign is assigned if a participant's score increased from condition A to condition B?
Model answer
A plus sign.
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