2,3 1,2,3 2,3,4 1,2,3,4 1,3,4,5 1,2,3,4,5 A group of researchers is designing an

Question

2,3

1,2,3

2,3,4

1,2,3,4

1,3,4,5

1,2,3,4,5

A group of researchers is designing an experiment to test whether an herbal supplement will help people lose weight. The researchers selected a sample of 500 adults who want to lose weight, and over the next four months, 250 of them will take the herbal supplement daily whereas the remaining 250 will take a placebo daily. At the end of the four months, the researchers will compare the weight loss for the two groups. Why is it important that the researchers use randomization to assign each of the adults who want to lose weight toa treatment group? Randomization prevents the adults who want to lose weight from selecting their own treatment group. Randomization eliminates lurking variables from the experiment. Randomization ensures each treatment group will be similar in everything except the type of pill taken. Randomization prevents the researchers from specifically assigning all adults who exercise regularly to take the herbal supplement daily. Randomization ensures that there will be an equal number of adults who want to lose weight in each treatment group

Explanation / Answer

1 because it really does this.

3 is also true.

4 is also true.

So 1,3,4 is answer

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