Singer, Judith D <br/><br/>
It's about time : using discrete-time survival analysis to study duration and the timing of events 

 - 155-195 
 - 1993 Vol. 18, no. 2 
 = JOURNAL OF EDUCATIONAL STATISTICS 
<br/><br/><label>Encabezamiento--Término de Indización: </label>ESTIMACION (MATEMATICAS) EDUCACION ESPECIAL PROBABILIDAD ESTADISTICA MODELO MATEMATICO