The year 2022 is the 20th anniversary of Joseph Schafer and John Graham's paper titled
“Missing data: Our view of the state of the art,” currently the most highly cited paper in the …

Several recent reviews summarize common missing value analysis methods. However,
none of them provide a systematic and in-depth summary of the analytical challenges and …

Because missing data are present in almost every study, it is important to handle missing
data properly. First of all, the missing data mechanism should be considered. Missing data …

A pilot study represents a vital step for conducting a full-fledged study soundly. In fact, a well-
conducted pilot study can help the researchers to design a clear road map they can follow …

Across the last fifty years, epidemiology has developed into a vibrant scientific discipline that
brings together the social and biological sciences, incorporating everything from statistics to …

AIM This study evaluated the psychometric properties of the modified Simulation
Effectiveness Tool (SET), the SET-M. BACKGROUND The SET, developed in 2005, was …

Background International evidence-based guidelines recommend physical exercise to form
part of standard care for all cancer survivors. However, at present, the optimum exercise …

Some 2 decades have passed since Levy et al.(2002) published their seminal study on the
impact of self-perceptions of aging (SPA) on mortality over a period of 23 years in this …

In order to determine how sustainable online grocery shopping is as a practice, it is crucial to
have an in-depth understanding of its drivers. This paper therefore validates the Unified …

Parents of children with autism spectrum disorder (ASD) often report poor psychological well‐
being, including a high level of parenting stress and depressive symptoms. Little is known …