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Developing a multisource feedback in...

Glenn, Dana M.

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Developing a multisource feedback instrument: A comparison of CTT and IRT.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Developing a multisource feedback instrument: A comparison of CTT and IRT./
作者:	Glenn, Dana M.
面頁冊數:	107 p.
附註:	Adviser: Karla Stuebing.
Contained By:	Dissertation Abstracts International66-11B.
標題:	Psychology, Industrial. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3194300
ISBN:	9780542393297

Developing a multisource feedback instrument: A comparison of CTT and IRT.
Glenn, Dana M.

Developing a multisource feedback instrument: A comparison of CTT and IRT. - 107 p.

Adviser: Karla Stuebing.

Thesis (Ph.D.)--University of Houston, 2005.

The present study examined the psychometric properties of a multi-source feedback (MSF) instrument by (a) evaluating item parameters for a MSF instrument from classical test theory (CTT) and item response theory perspectives (IRT), (b) comparing item parameters by rater group, and (c) comparing item parameters by performance dimension. Additionally, IRT was used to develop new versions of the MSF instrument designed to assess high-level performance. Analyses were conducted on a sample of 596 developmental MSF ratings from financial service managers. Results showed that CTT and IRT provided similar information regarding item difficulty and item discrimination; however the two approaches identified different items for revision and possible removal. Additionally, results showed that both the self and supervisor versions of the MSF instrument provided the most information at the average level of performance. Moreover, there were no differences in item parameters by rater group or by performance dimension. The present study demonstrated that the level of performance measured by a MSF instrument can vary, suggesting that organizations can utilize IRT to tailor MSF instruments to their needs.

ISBN: 9780542393297Subjects--Topical Terms:

520063
Psychology, Industrial.

Developing a multisource feedback instrument: A comparison of CTT and IRT.
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520 $a The present study examined the psychometric properties of a multi-source feedback (MSF) instrument by (a) evaluating item parameters for a MSF instrument from classical test theory (CTT) and item response theory perspectives (IRT), (b) comparing item parameters by rater group, and (c) comparing item parameters by performance dimension. Additionally, IRT was used to develop new versions of the MSF instrument designed to assess high-level performance. Analyses were conducted on a sample of 596 developmental MSF ratings from financial service managers. Results showed that CTT and IRT provided similar information regarding item difficulty and item discrimination; however the two approaches identified different items for revision and possible removal. Additionally, results showed that both the self and supervisor versions of the MSF instrument provided the most information at the average level of performance. Moreover, there were no differences in item parameters by rater group or by performance dimension. The present study demonstrated that the level of performance measured by a MSF instrument can vary, suggesting that organizations can utilize IRT to tailor MSF instruments to their needs.
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