例句與造句

1. We were unable to pool data because of study heterogeneity.
2. The presence of study heterogeneity ( studies have different sampling bias ) increases the dispersion relative to the margin of error.
3. In meta-analysis, which combines the data from several studies, homogeneity measures the differences or similarities between the several studies ( see also Study heterogeneity ).
4. In meta-analysis of separate studies, study heterogeneity causes distribution of results to be a mixture distribution, and leads to overdispersion of results relative to predicted error.
5. However, in the presence of study heterogeneity where studies have different sampling bias, the distribution is instead a mixture distribution and will be overdistributed relative to the predicted distribution.
6. It's difficult to find study heterogeneity in a sentence. 用study heterogeneity造句挺難的
7. In statistical meta-analysis, study heterogeneity is when multiple studies on an effect are actually measuring somewhat different effects due to differences in subject population, intervention, choice of analysis, experimental design, etc .; this can cause problems in attempts to summarize the meaning of the studies.
8. Other weaknesses are that it has not been determined if the statistically most accurate method for combining results is the fixed, IVhet, random or quality effect models, though the criticism against the random effects model is mounting because of the perception that the new random effects ( used in meta-analysis ) are essentially formal devices to facilitate smoothing or shrinkage and prediction may be impossible or ill-advised The main problem with the random effects approach is that it uses the classic statistical thought of generating a " compromise estimator " that makes the weights close to the naturally weighted estimator if heterogeneity across studies is large but close to the inverse variance weighted estimator if the between study heterogeneity is small.