What is accomplished by randomly assigning participants to groups? It increases

Question

What is accomplished by randomly assigning participants to groups? It increases your ability to generalize the results of your study beyond your sample by making the sample representative of the population. It gives everyone in the population of interest an equal chance of being selected to participate in the experiment. It reduces the likelihood that individual differences will confound your results and reduce internal validity. It increases the likelihood that there will be a statisticallv sianificant difference between

Explanation / Answer

1.it gives everyone in group equal chance to participate in experiment

2. Retaining hypothesis when it is false.

3. Type 1 error

4.the researcher should reject the null hypothesis with either a=.05 or a=.02

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