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Questionnaire Dwelling Unit-Level and Person Pair-Level Sampling ...

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the two counts (one count might be 0) was used, provided the following conditions<br />

were satisfied for both pair members:<br />

• The sum of counts of the number of sibling-sibling pairs equalled or exceeded at<br />

least one of the counts of household members in the upper age range for the<br />

screener roster or either of the pair member’s rosters.<br />

• There were no bad relationship codes within the upper age ranges.<br />

• There were no bad relationship codes within the lower age range, or the count was<br />

nonzero.<br />

7. If the counts from the two pair members did not agree, the following rules were used<br />

to assign the appropriate count, provided no bad relationship codes were evident in<br />

either age range on either side. These conditions are hierarchical, in that subsequent<br />

conditions require that the previous condition was not met.<br />

• If the number within the upper age range was the same on both sides, but the<br />

number in the lower age range was not, then the side with the number in the lower<br />

age range equal to the number in the screener roster within the lower age range<br />

was chosen. (In all cases, one side had a zero count <strong>and</strong> the other did not. This<br />

captured situations where it was necessary to discern whether the zero count was<br />

due to no children in the lower age range on one side <strong>and</strong> whether the screener<br />

also had no children in that range.)<br />

• For one pair member, the number of children in either the lower age range or the<br />

upper age range did not agree with the number in the screener roster in that range.<br />

However, for the other pair member, the number within both age ranges agreed<br />

with the screener count. The count was set to the side that agreed with the<br />

screener.<br />

• For both pair members, the numbers within the lower age range were either both<br />

zero or both positive. The number within the upper age range did not agree<br />

between pair members, but one pair member agreed with the screener. The final<br />

count was set to the count for that pair member.<br />

• In the rosters for both pair members <strong>and</strong> the screener, the numbers within the<br />

upper age range for at least one of the three were nonzero but not necessarily<br />

equal. The numbers within the lower age range were not equal across any of the<br />

three rosters. The pair member with the number of children in the lower age range<br />

closest to the screener was selected.<br />

• In the rosters for both pair members <strong>and</strong> the screener, the numbers within the<br />

lower age range for at least one of the three were nonzero but not necessarily<br />

equal. The numbers within the upper age range were not equal across any of the<br />

three rosters. The pair member with the number of children in the upper age range<br />

closest to the screener was selected.<br />

8. If the counts from the two pair members did not agree, but one side had bad<br />

relationship codes within the upper age range <strong>and</strong> the other did not have bad<br />

S-15

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