1. longitudinal design
2. descriptive design
3. correlational design
4. experimental design
2. descriptive design
3. correlational design
4. experimental design
Answer: 3.
Explanation:
This method would be described as a correlational design.
Correlational study and design is considering a type of research where researchers are looking to understand and describe the correlation between types of relationship and what they have with one another.
Since parents from the question are looking to compare the home behavior of the children with behavior at the playground, they are using this type of method.
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