| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c181714 _d181674 |
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| 008 | 171003b xxu||||| |||| 00| 0 eng d | ||
| 022 | _a00131644 | ||
| 100 | _aKOHLER, Carmen | ||
| 245 |
_aTaking the missing propensity into account when estimating competence scores: evaluation of item response theiry models for nonignorable omissions. / _cKOHLER, Carmen, Steffi Pohl, and Claus H. Carstensen |
||
| 260 |
_bSAGE _c2015 |
||
| 300 | _aVol. 75 No. 5 p 850-874 | ||
| 440 | _aEducational psychological measurement | ||
| 942 |
_2lcc _cART |
||