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Theoretical comparisons of average normalized gain calculations
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10.1119/1.2213632
/content/aapt/journal/ajp/74/10/10.1119/1.2213632
http://aip.metastore.ingenta.com/content/aapt/journal/ajp/74/10/10.1119/1.2213632

Figures

Image of Fig. 1.
Fig. 1.

represents a 3D surface in the space spanned by , , and .

Image of Fig. 2.
Fig. 2.

With a fixed pre-test score, changes linearly with respect to and the slope is determined by the value of .

Image of Fig. 3.
Fig. 3.

The relation between and at constant values of post-test scores. The scatter plot represents data from a calculus-based introductory physics class at The Ohio State University .

Image of Fig. 4.
Fig. 4.

The relation between and at constant values of absolute score changes. The scatter plot is from the same data shown in Fig. 3.

Image of Fig. 5.
Fig. 5.

A class going through a Normal Translation process—all students have the same absolute score change, which is denoted with .

Image of Fig. 6.
Fig. 6.

A class going through a Normal Expansion process—students with low pre-test scores achieve smaller absolute score improvement than students with high pre-test scores.

Image of Fig. 7.
Fig. 7.

A class going through a Normal Contraction process—students with low pre-test scores achieve larger absolute score improvement than students with high pre-test scores; however, all students stay at the same sides of the class score distributions for both pre- and post-tests.

Image of Fig. 8.
Fig. 8.

A class going through an Abnormal Shift process—students with low pre-test scores achieve larger absolute score changes than students with high pre-test scores, and students switch sides on the class score distributions of pre- and post-tests.

Tables

Generic image for table
Table I.

Results of a computer simulation for a class going through four different changes in pre- and post-tests. The data assumes a normal distribution with , , and .

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/content/aapt/journal/ajp/74/10/10.1119/1.2213632
2006-10-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Theoretical comparisons of average normalized gain calculations
http://aip.metastore.ingenta.com/content/aapt/journal/ajp/74/10/10.1119/1.2213632
10.1119/1.2213632
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