Professor Devine and her colleagues are interested in assessing whether active versus passive play causes a preference for sweet or salty foods in toddlers. They assign groups of children to either an active play, passive play, or no play group and record their food choices when presented with a variety of sweet and salty foods. In this study, is the independent variable and is the control group.

Professor Devine and her colleagues are interested in assessing whether active versus passive play causes a preference for sweet or salty foods in toddlers. They assign groups of children to either an active play, passive play, or no play group and record their food choices when presented with a variety of sweet and salty foods. In this study on health,  active play and passive play is the independent variable and no play is the control group.to understand more about the subject

A variable represents a measurable attribute that changes throughout an experiment, verifying the results. These attributes have different measures, depending on the variables, the context of the study or the limits that the researchers consider.

With this information, we can conclude that the active play and passive play group will be variables in Health, and the no play group will be the control group, because it will be in normal conditions.

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type of play, no play

Explanation:

In a study, the independent variable is the variable that isn't changed by the other variables during the experimental procedure. On the other hand, the dependent variable is the variable being tested/measured during the experiment (in this case, children's food choice), and therefore this variable is 'dependent' on the independent variable. Finally, the control group is the group where the independent variable is not manipulated, i.e., the group where participants do not receive the experimental treatment. A control group enables the establishment of causal-effects relationships by isolating the effects of the independent variable.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.