@article {343,
	title = {Psychometric properties of an emotional adjustment measure: An application of the graded response model},
	journal = {European Journal of Psychological Assessment},
	volume = {23},
	number = {1},
	year = {2007},
	pages = {39-46},
	publisher = {Hogrefe \& Huber Publishers GmbH: Germany},
	abstract = {Item response theory (IRT) provides valuable methods for the analysis of the psychometric properties of a psychological measure. However, IRT has been mainly used for assessing achievements and ability rather than personality factors. This paper presents an application of the IRT to a personality measure. Thus, the psychometric properties of a new emotional adjustment measure that consists of a 28-six graded response items is shown. Classical test theory (CTT) analyses as well as IRT analyses are carried out. Samejima{\textquoteright}s (1969) graded-response model has been used for estimating item parameters. Results show that the bank of items fulfills model assumptions and fits the data reasonably well, demonstrating the suitability of the IRT models for the description and use of data originating from personality measures. In this sense, the model fulfills the expectations that IRT has undoubted advantages: (1) The invariance of the estimated parameters, (2) the treatment given to the standard error of measurement, and (3) the possibilities offered for the construction of computerized adaptive tests (CAT). The bank of items shows good reliability. It also shows convergent validity compared to the Eysenck Personality Inventory (EPQ-A; Eysenck \& Eysenck, 1975) and the Big Five Questionnaire (BFQ; Caprara, Barbaranelli, \& Borgogni, 1993). (PsycINFO Database Record (c) 2007 APA, all rights reserved)},
	keywords = {computerized adaptive tests, Emotional Adjustment, Item Response Theory, Personality Measures, personnel recruitment, Psychometrics, Samejima{\textquoteright}s graded response model, test reliability, validity},
	isbn = {1015-5759 (Print)},
	author = {Rubio, V. J. and Aguado, D. and Hontangas, P. M. and Hern{\'a}ndez, J. M.}
}
@article {35,
	title = {Expansion of a physical function item bank and development of an abbreviated form for clinical research},
	journal = {Journal of Applied Measurement},
	volume = {7},
	number = {1},
	year = {2006},
	pages = {1-15},
	publisher = {Richard M Smith: US},
	abstract = {We expanded an existing 33-item physical function (PF) item bank with a sufficient number of items to enable computerized adaptive testing (CAT). Ten items were written to expand the bank and the new item pool was administered to 295 people with cancer. For this analysis of the new pool, seven poorly performing items were identified for further examination. This resulted in a bank with items that define an essentially unidimensional PF construct, cover a wide range of that construct, reliably measure the PF of persons with cancer, and distinguish differences in self-reported functional performance levels. We also developed a 5-item (static) assessment form ("BriefPF") that can be used in clinical research to express scores on the same metric as the overall bank. The BriefPF was compared to the PF-10 from the Medical Outcomes Study SF-36. Both short forms significantly differentiated persons across functional performance levels. While the entire bank was more precise across the PF continuum than either short form, there were differences in the area of the continuum in which each short form was more precise: the BriefPF was more precise than the PF-10 at the lower functional levels and the PF-10 was more precise than the BriefPF at the higher levels. Future research on this bank will include the development of a CAT version, the PF-CAT. (PsycINFO Database Record (c) 2007 APA, all rights reserved)},
	keywords = {clinical research, computerized adaptive testing, performance levels, physical function item bank, Psychometrics, test reliability, Test Validity},
	isbn = {1529-7713 (Print)},
	author = {Bode, R. K. and Lai, J-S. and Dineen, K. and Heinemann, A. W. and Shevrin, D. and Von Roenn, J. and Cella, D.}
}
