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vladimir1956 [14]
3 years ago
11

Determine whether the given description corresponds to an observational study or an experiment. in a study of 448448 childrenchi

ldren with a particular​ disease, the subjects completed a survey aboutcompleted a survey about their diet.their diet. does the given description correspond to an observational study or an​ experiment?
Social Studies
1 answer:
almond37 [142]3 years ago
5 0
I'd say that the answer is observational study because they're just analyzing the data and if it were an experiment they'd be taking data and comparing it.
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That statement is false

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igor_vitrenko [27]

Answer:

Variable Ratio  Schedule

Explanation:

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In the example, the rats get a pellet of food, so we're talking about a reinforcement. They <u>don't get a reward EVERY TIME</u> they press the bar so we are not talking about a continuous reinforcement but a partial reinforcement. Since the rats press the bar and get a reward after certain <u>NUMBER</u> of times, we're talking about a ratio schedule. Finally, the number of times they need to press the bar to get a reward <u>VARIES</u> from trial to trial so this is a Variable Ratio Schedule.

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Explanation:

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