Measuring Unpredictable, Fragmented Maternal Mood

An R Function for Calculating Mood Entropy from a series of Likert-Type Scale Items.

This short document describes an R function for calculating the normalized mood entropy measure described in detail in:

Glynn, L.M., Howland, M.A., Sandman, C.A., Davis, E.P., Phelan, M., Baram, T. Z., & Stern, H. (2018). Prenatal maternal mood patterns predict child temperament and adolescent mental health.  Journal of Affective Disorders 228, 83-90.