A clinical psychologist investigates the relationship between the daily duration of recreational screen time (SSS, in hours) and sleep latency (LLL, in minutes) in teenagers. The analysis of the data reveals a positive correlation.
Explain what the term 'positive correlation' refers to in the context of this study.
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.