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1)Â Â Â Separate the 40 participants listed below into two groups of 20, in which each group has an equal number of men and women (10 M, 10 F each). Use a random numbers table (text, pp. 537-538) to accomplish this. (Start anywhere in the table, and proceed in any direction that you like. Odd numbers put the subjects in group 1; even numbers in group 2. When one group is filled, the rest go into the other group.)
2)Â Â Â Next, separate the participants into two groups by using range matching (decide on your acceptable ranges in advance, for example, within 5 pounds).
a)Â Â Â Â Match as many pairs of female participants as possible: find a match and randomly assign one to the first group, and the other to the second group. Next, do the same for the male participants.
b)Â Â Â Next, match not only on gender, but also on weight.
c)Â Â Â Â Finally, match the participants on all three variables.
3)Â Â Â Finally, match the 40 participants on gender, weight, and height, using rank-ordered matching.
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40 Participants to be matched:
Name                                                  Gender                        Weight (lbs.)   Height (in.)
#1. Anna BoFanna                              F                                 110                 60
 2. Sandy Beach                                 F                                 140                 70
 3. Chuck Wagon                               M                                200                 72
 4. Ken Garoo                                    M                                180                 70
 5. Seymour Clearly                           M                                190                 71
 6. Phil O’Dendron                            M                                210                 74
 7. Rhoda Dendron                            F                                 120                 65
 8. Pete Moss                                      M                                150                 68
 9. Howie Dooit                                 M                                160                 70
10. Willy Makeit                                 M                                180                 70
11. Betty Won’t                                             F                                 100                 63
12. Al Gebra                                       M                                190                 72
13. Carol Ofthebells                            F                                 95                   55
14. Harold Bethyname                        M                                240                 76
15. Andy Walkswithme                                   M                                250                 75
16. Rod Andreel                                 M                                220                 72
17. Stu Potts                                        M                                190                 69
18. Sharon Sometimetogether             F                                 108                 65
19. Clara Asabell                                 F                                 115                 68
20. Allyson Wonderland                     F                                 118                 68
21. April Showers                               F                                 110                 63
22. Ben Dover                                    M                                190                 69
23. Hugh Gottabekiddinme                 M                                200                 72
24. May Flowers                                 F                                 130                 70
25. June Blossoms                               F                                 100                 60
26. Helen Highwater                           F                                 135                 68
27. Sam Iam                                       M                               195                 69
28. Mike Robiology                            M                                215                 72
29. Maye Beeso                                             F                                 134                 67
30. Polly Warner-Cracker                   F                                 109                 54
31. Rick O’Chet                                  M                                140                 64
32. Bill Board                                     M                                180                 70
33. I. C. Freeze                                   M                                190                 71
34. Barry Um                                      M                                200                 72
35. Raye Dium                                    F                                 112                67
36. Helena Baskit                                F                                 114                 66
37. Summer Rayne                             F                                 96                   65
38. Deniece Denephew                       F                                 122                 69
39. Goldie Lox                                   F                                 105                 63
40. Cindy Rella                                               F                                 124                 68