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Journal of Population Sciences

Table 3 Composite calculation of number of question paths

From: On the logical structure of census and survey questionnaires

Row

Section path

Calculation

Question paths

1

S1 →S2 →S3 →END

2 Ă— 4 Ă— 4

32

2

S1 →S2 →S3 →S4 →END

2 Ă— 4Ă— 4 Ă— 2

64

3

S1 →S2 →S3 →S4 →S5 →END

2 Ă— 4 Ă— 4 Ă— 2 Ă— 9

576

4

S1 →S2 →S3 →S4 →S5 →S6 →END

2 Ă— 4 Ă— 4 Ă— 2 Ă— 9 Ă— 2

1152

5

S1 →S2 →S3 →S4 →S5 →S6 →S7 →END

2 Ă— 4 Ă— 4 Ă— 2 Ă— 9 Ă— 2 Ă— 1

1152

6

S1 →END

2

2

7

S1 →S2 →S4 →END

2 Ă— 4 Ă— 2

16

8

S1 →S2 →S4 →S5 →END

2 Ă— 4 Ă— 2 Ă— 9

144

9

S1 →S2 →S4 →S5 →S6 →END

2 Ă— 4 Ă— 2 Ă— 9 Ă— 2

288

10

S1 →S2 →S4 →S5 →S6 →S7 →END

2 Ă— 4 Ă— 2 Ă— 9 Ă— 2 Ă— 1

288

  

Structural paths

3714

  

Invalid paths

160

  

Valid paths

3554

  1. Question paths may be partitioned according to the section paths from which the questions are drawn. The question paths column shows the product of the numbers of paths through the sections on the section path. There are nine paths through the economic activity questions in the “Application of the paths algorithms” section, as shown in Fig. 2b. The numbers of paths through the other sections are readily determined by inspection