Кормил собаку

Кормил собаку

Результаты (английский) 1:

Feeding a dog

Результаты (английский) 3:

the sample sizes of studies using secondary data were significantly larger than those usingprimary and mixed data sources. an analysis of variance analysis conducted across the threeindependent groups of primary, secondary, and mixed data found significant differences in samplesize between the groups (f = 6.02, p < 0.005). applying Tukey post hoc tests discovered significant differences between secondary and primary data sources. on average, the data users described 175 cases for study whereas secondary data averaged 1250 cases. no significant difference was found between mixed and secondary data even though the data users and averaged only 182 cases for study. the result was attributed to the low number of mixed data cases resulting in low statistical power. Suspecting that the result may have been affected by skewness created by a few very large samples in the data set, we repeated the analysis using a nonparametric Wilcoxon rank sum test but also found significant differences in sample size between primary and secondary data sources (chi - square = 47.06, p < 0.001).