Bridgeman, Brent, <br/><br/>
Comparative validity of multiple-choice and free-response items on the advanced placement examination in biology / 
Brent bridgeman 
 - 16 páginas 
 - College board report ;  no. 89-2 Ets rr ;  no. 89-1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biología--Evaluacion--Examenes, preguntas, etc.
<br/><br/><label>LC Class. No.: </label>QK316.5  / B75