Edexcel A-level Psychology 9PS0 · 2.2.6

Operationalisation of variables, extraneous variables and confounding variables

Code: 2.2.6
In: 2.2 Methods
Topic: 2 Cognitive psychology
Course: A-level Psychology 9PS0
Board: Edexcel

Codes and titles are read by a script from Edexcel's published specification and have not been checked by a person. What each point covers is in the specification itself: Edexcel’s specification.

Points in 2.2 Methods

2.2.1 Designing and conducting experiments, including field and laboratory experiments
2.2.2 Independent and dependent variables
2.2.3 Experimental and null hypotheses
2.2.4 Directional (one-tailed) and non-directional (two-tailed) tests and hypotheses
2.2.5 Experimental and research designs: repeated measures, independent groups and matched pairs
2.2.6 Operationalisation of variables, extraneous variables and confounding variables
2.2.7 Counterbalancing, randomisation and order effects
2.2.8 Situational and participant variables
2.2.9 Objectivity, reliability and validity (internal, predictive and ecological)
2.2.10 Experimenter effects, demand characteristics and control issues
2.2.11 Quantitative data analysis
2.2.12 Decision making and interpretation of inferential statistics
2.2.13 Case studies of brain-damaged patients including HM