Recently I was asked to prepare a brief presentation for people in the prediction business – planners and evaluators whose work was preoccupied with some form of the question: If I do this, what will happen? The audience brought a traditional if > then logic to the way they answered this question. They knew that … Continue reading Two Complexity Constructs to Reorient the Logic of Planning and Evaluation
Project Schedules, Program Models and Complexity: Linking Across Three Domains
PDF version: Schedules_logic_models_complexity_Morell_2_18_22 In 2018 I published an article making the case for using project schedules (in the form of PERT and Gantt charts) as logic models (Morell, 2018).[2] I offered two reasons for doing so. Using a project schedule as a logic model can reveal unique insight. Because planners and managers pay more attention … Continue reading Project Schedules, Program Models and Complexity: Linking Across Three Domains
My Principles for Constructing Logic Models
Of late there has been a lot of discussion on Evaltalk about logic models. This reminded me of the principles I rely on when I construct models. (For a dated, but still useful slide deck of my logic model workshop, go here.) What is a logic model good for? Logic models can be used to … Continue reading My Principles for Constructing Logic Models
Deriving Value from Models: Appreciating Partial Truth, Simplification, and Multiple Uses
I’m giving a talk at AEA 2019 in Minneapolis. The graphic summarizes the content. For the slides go here.