A-LevelPsychologyResearch methods9990/21 · May/June 2020 · Q12 Marks
In the study by Baron-Cohen et al., one variable was the score on the Eyes Test.
- (a)State whether this was an independent variable or a dependent variable. Include a reason for your answer.[1]
- (b)One problem with the original version of the Eyes Test was that the results produced a 'ceiling effect'. This is where most participants obtain high scores on the test. Explain why a ceiling effect is a problem.[1]
Mark scheme
Marking points from the official mark scheme (May/June 2020). The mark or mark type is shown in brackets.
- [1] 1 mark for DV and reason. Dependent variable because it was being measured = 1 Dependent variable because it differed according to whether the participant was autistic or not = 1 Dependent variable because it varied with the level of the IV/condition = 1 Dependent variable because eyes test score differed between the controls and autistics = 1 Dependent variable = 0 Independent variable because it was being measured = 0 Independent variable because it varied with the level of the IV/condition = 0
- [1] 1 mark for reason. It limits the variance / spread = 1 It becomes hard to distinguish between different scores = 1 It wouldn't have been possible to distinguish the controls and autistics even if there was a difference = 1
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