Clinical prediction models are widely used in modern clinical practice. Such models are often developed using individual patient data (IPD) from a single study, but often there are IPD available from multiple studies. This allows using meta-analytical methods for developing prediction models, increasing power and precision. Different studies,…

Case-mix heterogeneity across studies complicates meta-analyses. As a result of this, treatments that are equally effective on patient subgroups may appear to have different effectiveness on patient populations with different case mix. It is therefore important that meta-analyses be explicit for what patient population they describe the treatment…

Biomedical research policy in many countries has adopted the principle of active involvement in research. However, how different approaches to involvement such as patient and public involvement/engagement (PPIE), qualitative research, participatory research, co-design and co-production sit alongside each other, is contentious and unclear. There…

Monitoring of clinical trials is important to ensure adherence to protocol, to safeguard the rights of research participants and to achieve compliance with principles of good clinical practice. Recent regulatory changes in India require Ethics Committees to keep an oversight of ongoing clinical trials including on-site monitoring. In this article,…

Background: Co-research with people with intellectual disability is a distinct form of patient and public involvement (PPI). This systematic review summarize published studies and protocols to report on the process of co-research in social and healthcare research. Method: Relevant studies were identified using electronic searches on ASSIA,…

Background: Stratified medicine seeks to identify patients most likely to respond to treatment. Individual participant data (IPD) network meta-analysis (NMA) models have greater power than individual trials to identify treatment-covariate interactions (TCIs). Treatment-covariate interactions contain "within" and "across" trial…

Recently, the number of regression models has dramatically increased in several academic fields. However, within the context of meta-analysis, synthesis methods for such models have not been developed in a commensurate trend. One of the difficulties hindering the development is the disparity in sets of covariates among literature models. If the…

In some randomized clinical trials, patients may die before the measurements of their outcomes. Even though randomization generates comparable treatment and control groups, the remaining survivors often differ significantly in background variables that are prognostic to the outcomes. This is called the truncation by death problem. Under the…

Backsourcing is the act of an organization changing an outsourcing relationship through insourcing, vendor change, or elimination of the outsourced service. This study discovered numerous problematic outsourcing manipulations conducted by suppliers, and identified backsourcing methodologies to correct these manipulations across multiple supplier…

Many traditional classroom science and technology activities often ask students to complete prepackaged labs that ensure that everyone arrives at the same "scientifically accurate" solution or theory, which ignores the important problem-solving and creative aspects of scientific research and technological design. Students rarely have the…

Presents a statistical technique that yields consistent estimates for censored samples. Application of this technique to models related to selection bias and the presence of depression indicate that the prevalence of this disorder in mental health center populations approaches 44 percent rather than the 25 percent from a censored sample.…

The results from the present study indicate that in a sample of psychotherapy patients, cooperative and less cooperative research subjects are distinguishable on a number of characteristics including background and psychotherapy variables. These results caution against generalizations based merely on cooperative participants. (Author)

Patient satisfaction is an important indicator of the quality of nursing care. However, it raises numerous dilemmas: lack of consistent conceptualization and a theoretical framework, lack of reliable measurement approaches, and inconsistency of instruments. (SK)

Provides a review of lessons learned in dealing with unique problems encountered while providing group counseling for adult patients with metastatic cancer. Discusses problems, institutional policies, personal biases, and logistics associated with forming, establishing, maintaining, conducting and assessing the outcomes of group counseling with…

Solutions to methodological problems in medical technologies research synthesis relating to temporal change, persons receiving treatment, research design, analytic procedures, and threats to validity are presented. These solutions should help with the planning and methodogy for research synthesis in other areas. (BS)