Estimates of effect size (unsigned partial correlation coefficients) for the relationships between relative and absolute measures of avian abundance, assessed in 1998 and 2002, with incidence of human ...
对比法。即用相互对立的，或用同一事物不同方面的材料进行比较，从而显示出人和事的真假、善恶、美丑，使人与事的形象鲜明，特征突出。（3）递进法。即围绕一件事以事物本身发展的进程以及时间的推移为线索，层层递进，步步深入地安排材料。这种方法是我们习作时常用的组材方法。（4）详略法。
In recent years, researchers have recognized the importance of the concept of effect size for planning research, determining the significance of research results, and accumulating results across studies. However, the uncritical use of effect-size indicators may lead to different interpretations of similar...
fect size estimates Bootstrapped standard errors of effect size estimatesBootstrapped standard errors of effect size estimates
Full size image In the ISMMS sample, all patients with bipolar disorder reported psychotic symptoms during mood episodes at some point during the course of their illness (Table1). Consequently, the effect of psychosis was only investigated in the Yale sample (Table1) in which patients with psyc...
Even if the variants they use are truly associated with smoking behaviour, this is likely to produce incorrect estimates of the effect size of smoking on the outcome. 1.1. Aims In this paper, we aim: (1) to illustrate, using a data simulation, why inferences based on the results of ...
Magnitude-of-effect (ME) statistics, when adequately understood and correctly used, are important aids for researchers who do not want to place a sole reliance on tests of statistical significance in substantive result interpretation. We describe why methodologists encourage the use of ME indices as...
across designs requires that (a) all effect sizes be transformed into a common metric, (b) effect sizes from each design estimate the same treatment effect, and (c) meta-analysis procedures use design-specific estimates of sampling variance to reflect the precision of the effect size estimates....
Using a comprehensive Norwegian administrative database, we exploit independent quasi-experimental methods to estimate the effect of class size on student achievement at the end of lower-secondary school. Identification based on maximum class-size rules and population variation (and variations on these ...
These multi-batch experiments consist of small independent mini-experiments where the data are combined in an integrated data analysis to appropriately assess the treatment effect after accounting for the structure in the data. We demonstrate the method on two case studies with syngeneic tumour models...