In search for the most informative data for feedback generation: Learning analytics in a data-rich context.

•Formative assessment data have high predictive power in generating learning feedback.•Track data from e-tutorial systems are second-best predictors for timely feedback.•Predictive power of LMS data falls short in LA applications with rich data sources.•Learning dispositions take a unique position being complementary to all other data.•Combination of several data sources in LA is key to get timely, predictive feedback.