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
Reporting significance in symbols and substituting into formulae
- 3 things to know
- Component 01
Overview
Recall questions on reporting a significant Wilcoxon result, what p > 0.05 means, the symbols Σ, N and x̄, the formula for the mean, rearranging it to find a total or the number of scores, and the Spearman's rho formula.
What you need to know
Answer each one before you reveal it.
Write out the conventional way of reporting a significant Wilcoxon result in symbols and words.
What do N and x̄ stand for in statistical formulae?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Write out the conventional way of reporting a significant Wilcoxon result in symbols and words.
Model answer
The calculated value of T is stated as being less than the critical value at p ≤ 0.05 for a one-tailed test, so the null hypothesis is rejected.
- 2
What does p > 0.05 tell you about a result?
Model answer
The probability that it occurred by chance is greater than 5%, so the result is not significant and the null hypothesis is retained.
- 3
What does the symbol Σ instruct you to do?
Model answer
It instructs you to add up all the values that follow it.
- 4
What do N and x̄ stand for in statistical formulae?
Model answer
N is the number of scores or participants and x̄ is the arithmetic mean.
- 5
State the formula for the arithmetic mean using symbols.
Model answer
The mean is x̄ = Σx ÷ N.
- 6
A set of scores has a mean of 12 and there are 15 scores. Calculate the total of the scores.
Model answer
Rearranging the formula gives Σx = 12 × 15, so the total is 180.
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