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So test trends will never unfailingly indicate proficiency changes.
In addition to providing a sobering look at long-term test trends, the report on the study raised questions about the criteria used for the federal government's Blue Ribbon Schools program, noting that about a quarter of the award-winning schools have below-average test scores.
A synthesis with previously obtained cyclic pile test trends confirms the practical applicability of the results obtained.
1-way ANOVA was applied to test trends among groups, Student's t-test for paired samples was used to compare pre and post-treatment values.
We can also test trends across time.
Logistic regression was used to test trends.
Similar(45)
For a test trend, the class score is given by the fraction of promoted trends among the (K=5) nearest neighbors.
*Fisher's exact test, Trend = Chi-squared test for trend.
* 2-sided chi-square test trend significant p <.001.
† 2-sided chi-square test trend significant p <.05 * 2-sided chi-square test trend significant p <.001.
Increases were similar to background testing trends in control subjects.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com