Sentences with phrase «by subsamples»

Errors associated with using this statistical model to determine the global average time series is estimated by subsampling the observations (primarily ship tracks) in the earlier period against reanalysis data for the modern period.

Not exact matches

This subsample, with no particular statistical property, represents a training set that will be used by the second step of the algorithm to classify all the unread documents (the test set).

The MIT scholars examined this «novelty hypothesis» in their research by taking a random subsample of Twitter users who propagated false stories, and analyzing the content of the reactions to those stories.

Diego Sona gave the following talk at the International Conference on Pattern Recognition (ICPR - 2010) that held in Istanbul, Turkey, on 07 - 09 September 2010: «Multivariate Brain Mapping by Random Subsampling».

The most recent findings from the study as reported a few weeks ago are based on the full original sample of children as randomized to treatment and control conditions at the outset of the study rather than the previously studied subsample of children whose parents gave permission for follow - up testing by the evaluation team.

This customer subsample of parents is, not surprisingly, more educated and affluent than parents who are identically selected except that the costs of their child's attendance are covered in whole or in part by entities outside the family.

That can be demonstrated any number of ways: by including stations that have dropped out of GHCN; by using only stations that remain in the record and by using random subsamples of the 36,866 stations.

This issue could be examined by comparing analyses based on full resolution satellite - era data with an analysis of the same period employing subsampling at the resolution of the presatellite era.

As a result of this interim analysis, we reduced the P value in our current analysis of the data from.050 to.049, as determined by the sequential design criteria of Fleming et al. 18 After the completion of the study, we also performed an analysis of the subsample, women who were enrolled prior to January 2002, to verify that these results were consistent with the full study sample.

A stratified subsample of 701 patients was assessed by the Schedules for Clinical Assessment in Neuropsychiatry interview.

A subsample of the students also received diagnostic interviews conducted by child psychiatrists.18 The data from the online questionnaires were collected by a computer engineer.

The K10 / K6 scales were developed to measure this dimension by using modern item response theory methods9 that select questions with optimal sensitivity in the 90th - to 99th - percentile range of the general population distribution of psychological distress and that have consistent item response theory sensitivities across a number of sociodemographic subsamples.

Using subsamples of 385 adult children and 501 parents from the National Survey of Families and Households, we examine housework performed by adult children as reported by both parents and adult children in intergenerational households.

In each case, the moderating effects of year level and region were also investigated by conducting separate analyses for four subsamples of the data (univariate «slices» for Year 7, Year 11, metropolitan, regional / rural).

Results revealed higher rates of depressive symptoms in this subsample of African American male adolescents when compared to estimated prevalence rates of depression for adolescents as reported by large - scale studies and meta - analysis data.

For our older and younger adult subsamples, we found internal consistencies (αOlderAdults [αOA] =.92 and αYoungerAdults [αYA] =.94) that were in line with those reported by Spielberger.

The inconsistent accounts likely arise because the distinct studies are conducted using different subsamples and focus on distinct dimensions of physical health, further highlighting the fact that responses to widowhood may vary widely by respondents» personal resources and contextual factors (Stroebe et al., 2007).

It was tested whether boys with attention - deficit / hyperactivity disorder (ADHD), subgrouped by aggressive status, would show higher rates of depressive symptomatology and lower levels of self - esteem than would comparison boys and, in a subsample, explored attributional mechanisms that may be related to such internalizing features.

As was defined by the IHDP protocol in which one - third of participants received treatment, 38 % of this subsample was in the treatment group.

Each model was first fit using the full sample, and then refit using 4 subsamples stratified by sex and education level (middle school vs high school).

Finally, as suggested by Bryk and Raudenbush (1992), continuous predictor and outcome variables were centered around the mean of each subsample to facilitate data interpretation.