The accelerated failure time (AFT) model is a popular model for time-to-event data. It provides a useful alternative when the proportional hazards assumption is in question and it provides an intuitive linear regression interpretation where the logarithm of the survival time is regressed on the...

In longitudinal studies, data are often missing despite every attempt made to collect complete data. When the missingness is informative and hence not ignorable, it is generally difficult to analyze non-ignorable missing (NIM) data since the distributional assumptions about missing data are not...

Everyone has imagination. Imagination helps us see new possibilities for the future, navigate in times of uncertainty, and spark new ideas. But most of us do not know how to use imagination to its fullest potential or how to harness the power of imagination to overcome obstacles. The result: our...

Imagination provides a window into the world of what is possible helping us to navigate in times of uncertainty and come up with new ideas. Everyone has an imagination but most do not use our imaginations to their fullest potential or apply our imaginations to the challenges that we face. Our...

Essential strategies the nonprofit community can use to take advantage of rapidly changing technologies and new communication methods in our ultra-connected society In these challenging economic times, it is more important than ever for nonprofits to focus on shaping policy, building capacity,...