JSM 2005 - Toronto

Abstract #302644

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Activity Number: 44
Type: Invited
Date/Time: Sunday, August 7, 2005 : 4:00 PM to 5:50 PM
Sponsor: Section on Physical and Engineering Sciences
Abstract - #302644
Title: The Crossover Design: 2-D or Not 2-D
Author(s): Reid D. Landes*+ and John VanDyk
Companies: University of Arkansas for Medical Sciences and Iowa State University
Address: 4301 West Markham, #781, Little Rock, AR, 72205-7199,
Keywords: teaching ; example ; case study
Abstract:

We describe a two-treatment, two-period crossover experiment and its subsequent analysis. The experiment was designed to evaluate the effectiveness of an experimental teaching method as compared to a standard. The standard and experimental teaching methods were, respectively, the use of two-dimensional (2-D) diagrams and interactive three-dimensional (3-D) object movies of (insect) specimens for acquiring identification skills of morphological features. This experiment is useful in teaching the crossover experiment design as it appeals to a variety of disciplines. The dataset is small enough for hand calculations, and the results are clear.

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Revised March 2005