Research & Development - Model Implementation Model fidelity assesses the level to which the model is being implemented as designed. Three instruments have been developed with the guidance of Dr. William Swan, third party evaluator, to assess implementation of the Payne Model. Instructional Framework Scale – Observation Instructional Framework Scale – Artifacts/Conference Instructional Framework Scale – Artifacts/Conference – For Leaders For further information about these scales, please see the following documents. Technical Manual - aha! Process Model Fidelity Instruments An Examination of Model Fidelity for Implementing the Payne Model Does the Instructional Framework Scale-Artifacts/Conference Contribute Significantly to Model Fidelity for Implementing the Payne Model?