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Determine if the question is best answered by using an observational study.(3 points) Yes, an observational study is best. No, an observational study is not best. What type of raptor has the largest wingspan? Does taking vitamin C increase brain functions in males ages 18-24? Do elementary students like the new hot lunch options in the cafeteria

1 answer

Let's evaluate each question to determine if an observational study is suitable:

  1. What type of raptor has the largest wingspan?

    • Answer: No, an observational study is not best. This question can be answered through existing biological research and data on various raptor species, rather than an observational study.

  2. Does taking vitamin C increase brain functions in males ages 18-24?

    • Answer: Yes, an observational study is best. However, while an observational study could provide insights, a controlled experiment (randomized control trial) would be more appropriate to establish a causal relationship between vitamin C intake and brain function.

  3. Do elementary students like the new hot lunch options in the cafeteria?

    • Answer: Yes, an observational study is best. Observing student reactions and preferences regarding the new lunch options can be performed without manipulating any variables, making an observational study suitable.

So the answers are:

  1. No
  2. Yes (but ideally, a controlled experiment is better)
  3. Yes