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Katty2 Katty2
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6 years ago
A teacher is supposed to be randomly assigning her students to experimental and control groups, for participation in a learning project mandated by the school district.
 
  She has a master list of the alphabetized students, numbered 1 through 30. Which of the following is the most logical way to randomly assign the students to groups?
  a. Put numbers 1 to 30 in a hat, draw them out one by one, and put them into alternating groups.
  b. Place the first 15 subjects in one group and the last 15 in the other group.
  c. Ignore numbers and let the students choose their groups.
  d. Put numbers 1 to 30 in a hat, draw one, placing it in the experimental group. Then find a student with similar gender, attributes, and abilities, and put that one into the control group. Then go back to the hat for the next experimental subject.
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jianhong9991jianhong9991
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Katty2 Author
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6 years ago
Thank you, thank you, thank you!
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You make an excellent tutor!
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