Practical Investigation (Edexcel A-Level Psychology): Flashcards

Examines relationship between variables (strength & direction)

Predicts a relationship exists between variables

States no relationship exists; any found is due to chance

Defining precisely how each variable will be measured

Statistical test for correlational analysis

Observed value ≥ critical value from table

Preliminary run to identify procedural/ethical issues

Whether variables truly measured the intended concepts

Whether procedures provided consistent measurements

Low scores on one measure correspond with low on other