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      Teoria de Resposta ao Item na análise de uma prova de estatística em universitários Translated title: Item Response Theory to analyze a statistics test in university students

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          Abstract

          Este estudo objetivou aplicar a Teoria de Resposta ao Item na análise das 15 questões de múltipla escolha de uma prova de estatística apresentada na forma de gráficos ou de tabelas estatísticas. Participaram 413 universitários, selecionados por conveniência, de duas instituições da rede particular de ensino superior, predominantemente do curso de Psicologia (91,5%). Os universitários foram 80% do gênero feminino e do período diurno (69,8%), com idades de 16 a 53 anos, média 24,4 e desvio padrão 7,4. A prova é predominantemente unidimensional e os itens são mais bem ajustados ao modelo logístico de três parâmetros. Os índices de discriminação, dificuldade e correlação bisserial apresentam valores aceitáveis. Os resultados mostram as dificuldades apresentadas pelos estudantes com relação aos conceitos matemáticos e estatísticos, dificuldades essas observadas em outras pesquisas desde o ensino fundamental. Sugere-se que esses conceitos sejam tratados mais profundamente no ensino superior.

          Translated abstract

          This study aimed to use the Item Response Theory to analyze the 15 multiple-choice questions of a statistics test presented in the statistics graphics or tables form. The 414 university students were selected by convenience from two private universities, predominantly psychology students (91.5%). The university students were 80% female and with 16-53 years old, mean 24.4 and standard deviation 7.4. The test has predominantly one dimension and the items can be better fitting to the model of three parameters. The indexes of difficulty, discrimination and bisserial correlation presented acceptable values. The results indicate the difficulties of university students in the mathematic and statistic concepts, that difficulties are observed in the other studies since the elementary education. One suggests making more profound studies of these concepts in higher education.

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          How Students Learn Statistics

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            A theoretical explanation for previously infertile mothers' vulnerability to depression.

            To present a theoretical approach to understanding the potential vulnerability to depression in previously infertile new mothers. This approach was developed by synthesizing results of a series of grounded theory studies of experiences of infertility and pregnancy and of parenting after infertility. These results were further synthesized with the relational cultural theory (RCT). Previously infertile new mothers have experienced repeated and sustained interferences with significant relationships over the course of their infertility, which could lead to depression. Implications of this theoretical perspective include: (a) it is a new approach to understanding a significant and sometimes minimized issue in women's health; (b) it is a basis for designing an intervention for women coping with infertility and its aftermath; and (c) it might be applied to other women's health issues.
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              New Pedagogy and New Content: The Case of Statistics

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                psicousf
                PsicoUSF
                PsicoUSF
                Universidade São Francisco (Itatiba )
                1413-8271
                December 2005
                : 10
                : 2
                : 201-210
                Affiliations
                [1 ] Universidade São Francisco
                Article
                S1413-82712005000200012
                0b8bb329-4476-4d36-901f-8eef4d21d343

                http://creativecommons.org/licenses/by/4.0/

                History

                Graphic and tabular presentation,Mathematic difficulties,Psychology students,Representação tabular e gráfica,Dificuldades matemáticas,Estudantes de psicologia

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