A wonderfully fun study published in February 2022 asked a provocative question: what are the physiological determinants of trail running performance? The authors had me hooked in the abstract. So I ...

When conducting surveys, two kinds of nonresponse may cause incomplete data files: unit nonresponse (complete nonresponse) and item nonresponse (partial nonresponse). The selectivity of the unit ...

The physical properties of seawater include both 'thermodynamic properties' like density and freezing point, as well as 'transport properties' like the electrical conductivity and viscosity. Density ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...

iOS 18.4 adds a few fresh capabilities to Apple's mobile operating system. Here’s what’s new and how to download the update. Amazon's sale event ends tonight, so this is your last chance to save on ...

A random variable is a mathematical function that maps outcomes of random experiments to numbers. It can be thought of as the numeric result of operating a non-deterministic mechanism or performing a ...

This is a preview. Log in through your library . Abstract The purpose of this paper is to show how latent variable growth modeling can be utilized to examine change in students' attitudes toward ...