[ABE-L] Fwd: Re: Alina A. von Davier visitará o PIPGEs UFSCar.

[MARINHO G. ANDRADE]

---------- Mensagem encaminhada ----------
De: "Jorge Luis Bazan" <jorgeluisbazan em yahoo.com>
Data: 31/07/2015 20:57
Assunto: Re: [ABE-L] Alina A. von Davier visitará o PIPGEs UFSCar.
Para: "MARINHO G. ANDRADE" <marinho em icmc.usp.br>, "abe-l em ime.usp.br" <
abe-l em ime.usp.br>
Cc:



Esta mensagem é para divulgar a palestra desta semana do Seminário Conjunto
do *Programa Interinstitucional de Pós-graduação em Estatística
<http://www.icmc.usp.br/Portal/conteudo/1096/13/interinstitucional-de-pos-graduacao-em-estatistica>*
(PIPGEs
ICMC/USP e UFSCar), São Carlos.  Segue a informação.

LOCAL: Auditório Luiz Antonio Fávaro (sala *4-111*) – ICMC-USP, São Carlos,
SP.
TITULO: Quality Control and Test Security in Standardized Assessments With
Multistage Test Designs

*Palestrante*: Alina A. von Davier. Educational Testing Service (Princeton,
NJ, USA)


*Resumo:*
A multistage test (MST) is a computer-based assessment that may be thought
of as a compromise between a linear test and a computer-adaptive test
(CAT). As such, MSTs may be vulnerable to at least some of the major
security threats associated with each of these types of test (e.g., copying
for linear tests and item pre-knowledge for CATs). The degree of
vulnerability of any particular MST to these threats, as well as others,
will depend (among other things) on details of the MST assembly and
administration design. To supplement these preventative measures, routine
statistical monitoring of response and timing data for items, modules and
tests, as well as the screening of performance of individual test takers
and clusters of test takers, is essential.
For monitoring and screening procedures to be effective, it is critical
that statistical baselines be developed for the different characteristics
of the data that are being monitored. Since an MST has a different
structure than either a linear test or a CAT, it is reasonable to expect
that test takers’ behavior for MSTs will differ systematically from
behavior observed for either linear tests or for CATs. In this presentation
I discuss two concrete analyzes, one that identifies people who are
outliers and one that identifies items that are outliers. For the first
approach we use the scores from the variable section of the test (and make
use of the MST design) to produce an expected score. For the second
approach I present the use of traditional quality control tools such as
CUSUM charts to identify items that have been exposed. What we are looking
for are data patterns that deviate substantially from our baselines in ways
that are consistent with what would be expected from behavior that may lead
to invalid scores.

Favor divulgar a possíveis interessados.

Saudações, Jorge


Jorge Luis Bazán
Professor Doutor (MS-3)
Department of Applied Mathematics and Statistics, ICMC-USP
C.P. 668 - São Carlos, SP, Brazil - CEP 13560-970
*http://www.icmc.usp.br/pessoas/jlbazan/
<http://www.icmc.usp.br/pessoas/jlbazan/>*












El Viernes, 31 de julio, 2015 12:12:39, MARINHO G. ANDRADE <
marinho em icmc.usp.br> escribió:


===================
Prezados assinantes,
no período de 3 a 8/8/2015, Alina A. von Davier (Senior Research Director
do Educational Testing Service, Princeton, NJ, USA) visitará o PIPGEs
UFSCar ICMC/USP em São Carlos-SP. A visita tem apoio de um projeto PVE/CNPq
e do CeMEAI/ICMC/USP.
Além de reuniões com pesquisadores e estudantes da USP e da UFSCar, a
pesquisadora participará de uma banca de qualificação de doutorado do
PIPGEs e apresentará um seminário no PIPGEs.
Atenciosamente.
Coordenação do PIPGEs.
Marinho G. Andrade / Carlos Alberto R Diniz

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