This methodological assessment used data from a randomized controlled noninferiority trial of patients with low-risk prostate cancer, conducted by NRG Oncology (ClinicalTrials.gov identifier: ...

Background: Disease-specific Quality Of Life (QOL) measures are devised to assess the impact of a specific disease across a spectrum of important domains of life. The purpose of this study was to ...

This is a preview. Log in through your library . Abstract Three sources of data for studies of growth (matched longitudinal, unmatched longitudinal, and cross-sectional) were compared using mean ...

This is a preview. Log in through your library . Abstract The choice among a longitudinal, mixed longitudinal, or cross-sectional design is often called for in educational and psychological research.

Convergent validity examines the extent to which the outcome of interest agrees with the result of another measure that is believed to be assessing the same attribute. The cross-sectional convergent ...