Ascertaining Intervention Efficacy

Paul R. Yarnold

Optimal Data Analysis, LLC

UniODA is used to study the effect of interruptions on the course of behavior normally seen in longitudinal (temporal) series, for cases or for groups, in applications such as modeling of mortality rates after exposure to environmental toxins, evaluating symptom reduction in chronic disease after human or artificial therapy, or assessing the validity of efficacy claims (regarding an outcome) associated with change in public policy. This paper uses UniODA to assess the immediate short-term longevity of efficacy (if any) of back-to-back interventions (advertisements published on a hobby shop webpage) with respect to two serial outcomes each assessed as counts: the daily number of webpage visitors, and of page views.

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