| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce an estimate value error of subject's capability value parameter in the item response theory. <P>SOLUTION: A test parameter estimation method relating to the present invention has a step to normalize a capability value parameter θ<SB POS="POST">i</SB>, and a step to move a value of θ<SB POS="POST">i</SB>on a variable axis of distribution function while maintaining a magnitude relation so that a distribution of θ<SB POS="POST">i</SB>gets close to a normal distribution. <P>COPYRIGHT: (C)2012,JPO&INPIT |
