Dr. Beatrice conducted an observational study to investigate the relationship between the duration of day care attendance and cooperative behaviour in preschool children.
She recruited her participants from parents and their three-year-old children who were attending a Saturday morning family music session at a local public library.
She compared two groups of three-year-olds:
During a scheduled free-play session in the library hall, Beatrice paired each participant with an unfamiliar peer and provided a limited set of popular toys. She observed each child's interactions for 5 minutes and rated their cooperative behaviour. She used a scale of 1 to 10, where a score of 1 indicated 'highly aggressive/no sharing' and a score of 10 indicated 'highly cooperative/spontaneous sharing'.
Identify the sampling technique used by Beatrice in this study.
Outline one limitation of using this sampling technique in this study.
Identify the operationalised independent variable (IV) and operationalised dependent variable (DV) in this study.
Outline one strength of using a rating scale (1–10) to measure cooperative behaviour in this study.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions covering Diagnosis of mental disorders (4 Ds), Classification systems (DSM and ICD), Schizophrenia and one other disorder, Treatments for the two disorders, Individual differences, and Developmental psychology, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.