Specification

  • Experimental and research designs: repeated measures, independent groups and matched pairs, the issues with each and possible controls.

Past Paper Questions

2 Markers
  • Explain one reason why Tobias used an independent groups design in his investigation. (2) October 2019
  • Explain one weakness of using a repeated measures design in this study. (2) June 2016
  • Describe why Kaleb chose to use an independent groups design for his investigation. (2) January 2017
  • Describe how Philippa could have used counterbalancing in her investigation. (2) October 2018
4 Markers
  • Explain one strength and one weakness of Cherry using a repeated measures design in her experiment. (4) January 2020
  • Explain one strength and one weakness of using an independent groups design. (4) October 2017
  • Explain one strength and one weakness of the investigation conducted by Helena. (4) October 2018
  • Explain one strength and one weakness of using a repeated measures design in Cha and Dao’s investigation. (4) October 2019