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Table 4 Partially balanced incomplete block design for the 19 questionnaire scales

From: On imputation for planned missing data in context questionnaires using plausible values: a comparison of three designs

Form Scales
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
1 0 1 1 0 1 1 0 1 0 1 1 1 0 1 0 0 0 0 0
2 1 1 0 0 0 1 1 0 1 1 0 0 0 0 1 0 1 1 0
3 1 1 0 1 0 0 0 1 0 0 0 1 0 1 1 1 0 1 0
4 0 1 0 0 0 0 0 1 1 1 0 0 1 1 0 1 1 0 1
5 0 1 1 0 1 0 1 0 0 0 0 1 1 0 1 1 1 0 0
6 0 1 0 1 0 1 0 0 0 0 1 1 1 0 0 0 1 1 1
7 1 0 0 0 1 1 1 1 0 0 1 0 0 0 0 1 1 0 1
8 0 0 1 1 0 0 1 1 1 0 1 0 1 1 0 0 1 0 0
9 0 0 1 1 0 1 0 1 0 1 0 1 0 0 1 0 1 0 1
10 1 0 0 1 1 1 0 0 1 1 0 1 1 0 0 1 0 0 0
11 1 0 1 0 1 0 0 0 1 0 0 1 0 1 0 0 1 1 1
12 0 1 0 1 1 1 1 0 1 0 0 0 0 1 1 0 0 0 1
13 1 1 0 1 1 0 1 1 0 1 0 0 1 0 0 0 0 1 0
14 1 0 0 0 0 0 1 0 0 1 1 1 1 1 1 0 0 0 1
15 0 0 1 0 0 0 1 1 1 1 1 1 0 0 0 1 0 1 0
16 1 0 1 0 0 1 1 0 0 0 0 0 1 1 0 1 0 1 1
17 0 0 1 0 1 1 0 1 1 0 1 0 1 0 1 0 0 1 0
18 0 0 0 1 1 0 0 0 0 1 1 0 0 1 1 1 1 1 0
19 1 1 1 1 0 0 0 0 1 0 1 0 0 0 1 1 0 0 1
  1. A “1” denotes the presence of the scale in the cluster, “0”, othersize