Sunday, August 20, 2006

 

p.165 fig.7.2(Susan E. Embretson)



用Excel畫出來(1)log-likelihood,(2)1st derivative,(3)2nd derivative等三條曲線.
check表7.1(p.165)之結果相同.
以上為第7章的form a的前5題答對,後5題答錯的情形(a=1.5; b分別為-2,-1.5,-1,-0.5,0,0,0.5,1,1.5,2)
http://tnc.k12.edu.tw/1002015816/manuscripts/rasch/Parallel%20Forms_3PL.xls

# posted by Smile Chien @ 10:21 PM
Comments:
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# posted by Anonymous Anonymous : 12:55 PM
 
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