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Planning and conducting research

Planning and conducting research

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Question 63

A researcher conducted a laboratory experiment to investigate the effect of ambient lighting on reaction time during a simulated night-driving task. One group of participants completed the task under blue-enriched white light, while another group completed the same task under warm yellow light.

Table: Reaction times (in milliseconds) under blue-enriched and warm yellow lighting conditions

Blue-Enriched LightWarm Yellow Light
ParticipantReaction Time (ms)ParticipantReaction Time (ms)
Participant A240Participant F285
Participant B255Participant G290
Participant C230Participant H310
Participant D248Participant I295
Participant E262Participant J302

Which of the following would act as an extraneous variable in this study?

A

Ambient lighting color

B

Hair color

C

Sleep duration the night before

D

Shoe size

Markscheme

Planning and conducting research Questions

  1. A Level
  2. /Psychology
  3. /Planning and conducting research

201 exam-style questions on OCR A Level Psychology Planning and conducting research. Each one has a worked solution and a mark scheme showing where the marks go.

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