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Benito carried out some research into the effects of day care on children’s behaviour - AQA - A-Level Psychology - Question 11 - 2017 - Paper 2
Question 11
Benito carried out some research into the effects of day care on children’s behaviour. He recorded the number of aggressive acts children displayed. The children who... show full transcript
Worked Solution & Example Answer:Benito carried out some research into the effects of day care on children’s behaviour - AQA - A-Level Psychology - Question 11 - 2017 - Paper 2
Step 1
State which statistical test Benito would use to analyse his data.
Answer
Benito would likely use the Independent Samples t-test. This statistical test is appropriate for comparing the means of two independent groups—in this case, children who attended full-time daycare versus those who did not.
Step 2
State three reasons why Benito would use the statistical test you identified in (i).
Answer
- Comparative Analysis: The Independent Samples t-test is designed to determine if there is a statistically significant difference between the means of the two groups.
- Normal Distribution: This test assumes that the data from both groups are normally distributed, which is applicable in many psychological studies regarding aggression.
- Independent Groups: The test is suitable here as the two groups (full-time daycare and non-full-time daycare attendees) are completely independent of each other.
Step 3
Describe how he would have selected his sample.
Answer
Benito would have selected his sample by using a random sampling method. This could involve strategies such as:
- Listing all potential participants and using a random number generator to select individuals for the study.
- Ensuring that every child within the target population has an equal chance of being included, thereby minimizing selection bias.