Practical Investigation (Edexcel A-Level Psychology): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Operationalisation definition
Operationalisation definition
Clearly defining variables so study can be replicated
Inter-rater reliability definition
Inter-rater reliability definition
Multiple observers compare findings on same content
3 main investigation approaches in health psych
3 main investigation approaches in health psych
Questionnaires, interviews, content analysis
Alternative hypothesis (H₁)
Alternative hypothesis (H₁)
Directional prediction based on theory/previous research
Null hypothesis (H₀)
Null hypothesis (H₀)
No difference; any difference due to chance
Chi-squared test usage
Chi-squared test usage
Nominal data, looking for differences between conditions
Degrees of freedom formula
Degrees of freedom formula
df = (R-1)(C-1)
Expected frequency formula (chi-squared)
Expected frequency formula (chi-squared)
(Row total × Column total) ÷ Overall total
When to retain null hypothesis
When to retain null hypothesis
Calculated value doesn't equal/exceed critical value
Behavioural categories definition
Behavioural categories definition
Clear categories ensuring clarity in data collection