# Determine whether the study depicts an observational study or an experimental study. A study was done to see if sugar consumption can cause hypoeracti

Determine whether the study depicts an observational study or an experimental study.
A study was done to see if sugar consumption can cause hypoeractivity in children. The researcher took four groups of children and assigned different amounts of sugar the children had to consume. After a certain period of​ time, they assessed whether or not the children were hyperactive.
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Leonard Stokes
Step 1
Study: The study 4 groups of children and each group have treated with different amounts of sugar. They were observed to determine whether or not hyperactive.
Step 2
Observational Study: An observational study measures the values of a variable without influencing the values of response variables and explanatory variables. Thus, in observational study, researchers can observe the behaviors of the individuals without influencing the outcome of that study.
Designed experiment: In a designed experimental study, researchers allocate individuals to a certain group under study and change the values of an explanatory variable intentionally, after which, the values of the response variable for each group is recorded.
Step 3
Here, the researchers intentionally created 4 groups of children and treated them by 4 different treatments. Hence, the variables of the study were influenced by the researchers.
Hence, given study is an observational study.