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Research methods and techniques

Research methods and techniques

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Question 153

Article: Ergonomics, Ambient Noise, and Cognitive Fatigue

How does the open-plan office layout truly affect employee performance? While cognitive scientists can measure objective metrics like reaction times on attention tasks, understanding the subjective human experience of cognitive fatigue requires us to ask employees directly about their internal states.

A recent study investigated how remote and hybrid corporate workers perceive the relationship between ambient background noise in shared workspaces and their daily cognitive fatigue. Researchers distributed a structured questionnaire to 400 corporate employees, asking them to rate their agreement with several statements regarding their sensory environment and mental focus.

The survey revealed a significant gap between self-perceived behavior and objective performance assessments:

  • When asked whether they agreed that "working in an environment with ambient noise levels above 60 decibels for more than four hours directly causes them to feel mental exhaustion," 72% of the employees agreed or strongly agreed.
  • When asked if they believed "using active noise-cancelling headphones during deep-work blocks completely eliminates cognitive fatigue," 35% agreed, whereas organizational psychologists argue fatigue is multi-faceted and rarely resolved by a single technological change.

Despite these discrepancies, the survey allowed researchers to collect vast amounts of deep, personal reflections regarding feelings of sensory overload and daily frustration that standardized heart-rate variability monitors or keystroke trackers could never fully capture.

Adapted from an article on 'The Workplace Science Journal'

With reference to the article, explain one strength of using the self-report method in research.

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Markscheme

Research methods and techniques Questions

  1. A Level
  2. /Psychology
  3. /Research methods and techniques

644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.

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