Researchers run a randomised control trial within a school. When analysing the data, they realised that children in their control group had been constantly interacting with children in the treatment group and, thus, had been exposed to the intervention. This may be an example of:Spillover effectsSelf-selectionAttritionPartial compliance
Question
Researchers run a randomised control trial within a school. When analysing the data, they realised that children in their control group had been constantly interacting with children in the treatment group and, thus, had been exposed to the intervention. This may be an example of:Spillover effectsSelf-selectionAttritionPartial compliance
Solution
This may be an example of Spillover effects.
Here's why:
Spillover effects occur when the treatment given to the treatment group affects the control group. In this case, the children in the control group were exposed to the intervention because they were constantly interacting with the children in the treatment group. This interaction led to the control group indirectly receiving the treatment, which is a classic example of a spillover effect.
Self-selection, attrition, and partial compliance are not applicable in this scenario. Self-selection refers to participants choosing whether to be in the treatment or control group, which is not the case here. Attrition refers to participants dropping out of the study, which is also not mentioned in the scenario. Partial compliance refers to participants not fully adhering to the treatment or control conditions, which is not the issue in this case.
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