Hays, Ron D. <br/><br/>
Longitudinal scalogram analysis :  a methodology and microcomputer program for Guttman scale analysis of longitudinal data / 
Ron D. Hays, Phyllis L. Ellickson ; supported by the Conrad N. Hilton Foundation. 
 - California :  Rand Corporation,  1990. 
 - 5 p. ;  28 cm. 
 - A Rand note ;  N-3154-CHF/RC .
 - Rand note ;  N-3154-CHF/RC. .
<br/><br/>Includes bibliographical references (p.4-5) 
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Longitudinal method<br/>Scaling (Social sciences)