I demonstrate how to calculate Cronbach's coefficient alpha from the item covariance matrix or item correlation matrix. I also demonstrate how the alpha() function of Revelle's psych package can be used to (a) calculate alpha, and (b) calculate 95% confidence intervals for alpha.

Rplots

A pretty broad workshop covering key parts of ProTools. We go from directly measuring flux on multi-band data with ProFound to full SED fitting of the results with ProSpect.

This is a collection of projects I completed during the Fall 2024 semester.