Sentences with word «nonrespondents»

Although we were gratified to achieve a 78 % retention rate in the study during 3 years, there remain significant differences in the demographic composition of nonrespondents in the intervention group compared with the UC group, and within the randomized treatment groups as well.

Although there was a lower response among families of minority groups (70 %) than among white families (84 %), (p <.01), t - tests and chi - square analyses indicated that minority - group respondents did not differ from minority - group nonrespondents on any birth status or sociodemographic variable (p >.05).

Check out James O'Malley's recent publications «Optimal small - area estimation and design when nonrespondents are subsampled for followup» and «Modeling zero - modified count and semicontinuous data in health services research Part 1: background and overview and Part 2: case studies.»

Comparisons between the respondents and nonrespondents indicated no statistically significant differences in terms of age, sex, and whether they attended city or rural schools.

And those nonrespondents are harder to find, thanks in part to economic disruptions and a growing population of immigrants.

(Nonrespondents are subject to prosecution and a fine, although no money has ever been collected.)

I bet it's 50 % — which accounts for all but 3 % of your nonrespondents!

Finally, to account for the minor differences between respondents and nonrespondents that we did observe, the test scores of children who, based on their demographic characteristics, were more likely to attend follow - up sessions were weighted less heavily, while the test scores of children who were less likely to attend follow - up sessions, but nevertheless did, were weighted more heavily.

Given the slight differences between respondents and nonrespondents, however, the weights had little effect on the results.

Nonrespondents in the intervention group were more likely than comparison group nonrespondents to be first - time parents (67 % vs 53 %) and be without a spouse or partner (13 % vs 3 %).

No significant differences have been found between respondents and nonrespondents, suggesting a representative sample.

We used two - tailed t tests or χ2 tests with corrections for continuity to compare respondents and nonrespondents on age and sex after obtaining the appropriate human subjects» approval to use aggregate data of nonrespondents on these variables.

There were no significant differences in age and sex between respondents and nonrespondents.

The adjustments reduce potential bias to the extent that the survey respondents and nonrespondents (noncontacts, refusals, etc.) with similar geographic, demographic, and socioeconomic characteristics are also similar with respect to the survey statistics of interest.