Time-dependent Cox regression in R creates a major challenge for researchers analyzing survival data that evolves over time. Standard Cox models assume fixed predictors, yet most real datasets include ...

The present article aims to analyze the WHOQOL-DIS (World Health Organization Quality of Life - Disabilities) structure to verify this instrument’s adequacy to the theoretical principles underlying ...

This command takes a URL as input and downloads and opens a data file. It can be used to download and save files of other typ es, but these will not be opened. IBM SPSS Statistics 18 or later and the ...

There is also write support for all the data formats, but not the metadata formats. The produced SAS7BDAT files still cannot be read by SAS, but feel free to contribute your binary-format expertise ...

Household surveys are among most complex statistical data collection and compilation exercises out there. They are conducted by national statistical offices, other government bodies and private ...

Recent studies on judgments of learning (JOLs) suggest that beliefs play an important role in the formation of JOLs. The current article introduces a multilevel mediation model to quantify the ...

We present the data from a crowdsourced project seeking to replicate findings in independent laboratories before (rather than after) they are published. In this Pre-Publication Independent Replication ...

Testing of therapies for disease or injury often involves the analysis of longitudinal data from animals. Modern analytical methods have advantages over conventional methods (particularly when some ...

In 2005, Holy and Guo advanced the idea that male mice produce ultrasonic vocalizations (USV) with some features similar to courtship songs of songbirds. Since then, studies showed that male mice emit ...

In the randomized PCI cohort of the SYNTAX Trial (n=903), the baseline and residual SYNTAX Scores were calculated. Subjects with a residual SYNTAX Score of 0 were defined as having undergone complete ...