Common methodological problems include violation of the assumptions necessary for the statistical tests used, selection of an inappropriate sample of subjects, lack of true variance in the levels or categories within the sample tested, low prevalence of results across the full spectrum of test scores, and skewed or assymetrical distribution of data.
Other methodological concerns might involve violation of the presumed independence of the latent-level errors in Figure 3, or an unmeasured cause of an intended latent also causing an indicator via mechanisms not currently in the model.
These results are in line with several other clinical and methodological studies indicating important violations of PH and/or linearity hypotheses (Ramsay, 1988; Sleeper and Harrington, 1990; Hastie and Tibshirani, 1990; Royston and Altman, 1994; Greenland, 1995; Rothman et al, 1995; Abrahamowicz et al, 1997; Benedetti and Abrahamowicz, 2004; Royston et al, 2006; Spix et al, 2008).
Strong empirical evidence suggests that such violations of fundamental methodological guidelines, e.g. failure to conceal allocation sequence in randomized trials, is associated with overestimation of effects [ 76].
Assessing the suitability of the neighborhood method as a methodological approach to the estimation of health issues and human rights violations requires consideration of the realities of the humanitarian context.
While there may be methodological issues in accurately measuring the rates of prevalence of plagiarism and other violations of academic integrity, discerning leaders of academia too have echoed such observations.
Recent methodological exploration has demonstrated that the resultant percentiles are robust unless there are serious violations of model assumptions [ 45].
Methodological suggestions and a macroergonomic framework are offered for improving future studies of the epidemiology of safety violations.
It's a methodological prize".
