A group of VCE Psychology students conducted a study to investigate the effect of a new ‘Digital Detox’ program (limiting screen time) on levels of reported stress and anxiety in young adults aged 18-25. Participants were randomly assigned to either a ‘Digital Detox’ group or a control group. Stress and anxiety levels were measured using standardised scales before and after the four-week program. The ‘Digital Detox’ group showed a statistically significant reduction in both stress and anxiety compared to the control group.
a. Outline one potential extraneous variable that could have influenced the results of this study, and explain how it might have affected the conclusions drawn.
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Create Free Account Log inThis is a free VCE Units 3 & 4 Psychology practice question worth 2 marks, testing your understanding of Scientific evidence heading. It falls under How is scientific inquiry used to investigate mental processes and psychological functioning? in Unit 4: How is mental wellbeing supported and maintained?. Submit your answer above to receive instant AI-powered marking and personalised feedback.
In this unit students explore the demand for sleep and the influences of sleep on mental wellbeing. They consider how changes to a person’s sleep-wake cycle can affect psychological functioning. Students explore the concept of mental wellbeing, including social and emotional wellbeing as a multidimensional and holistic framework. They apply a biopsychosocial approach to specific phobia, exploring how biological, psychological and social factors are involved in its development and management. A student-designed scientific investigation involving the generation of primary data related to mental processes and mental wellbeing is undertaken in either Unit 3 or Unit 4 or across both Units 3 and 4, and is assessed in Outcome 3 of this unit.
Students undertake a student-designed scientific investigation in either Unit 3 or Unit 4, or across both Units 3 and 4, related to mental processes and mental wellbeing. The investigation involves the generation of primary quantitative data. Students apply key science skills to develop and test a research question, gather and analyse data, and communicate findings in a structured scientific poster. A logbook is maintained for authentication and assessment purposes.
**Scientific evidence**
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