Ravid, Ruth <br/><br/>
Practical statistics for educators 

 - 5ta. ed. 
 -  Rowman & Littlefield,   2015 
 - 275 p.;   25.5 cm 
<br/><br/>Describing distributions.- Measuring relationships.- Comparing group means.- Chi square test.- Standardized test scores, reliability, and validity.- Putting it all together. 
<br/><br/>2015 
<br/><br/><label>ISBN: </label>978-1-4422-4286-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enseñanza - Inglés<br/>Estadísticas
<br/><br/><label>Dewey Class. No.: </label>428.0071