biserial


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biserial

[‚bī′sir·ē·əl]
(biology)
Arranged in two rows or series.
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Para la construccion del test-LPHB se han usado tres indices que se focalizan en los items individuales del test (dificultad, discriminacion, coeficiente de punto biserial), dos de ellos se centran en el test (fiabilidad de Richardson y delta de Ferguson), a continuacion se describen:
Construccion, validacion y calibracion de un instrumento de medida del aprendizaje: test de ley de Bernoulli
TABLA 1 Medias, desviaciones estandar y correlaciones punto biseriales de los reactivos de la Prueba de Autoestima para Adolescentes Reactivo N Media 1.
Prueba de autoestima para adolescentes
[MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] and the point biserial correlation coefficient between the logit and the observed outcome ([r.sub.pbi) is .53.
Biodata in professional entry-level selection: Statistical scoring of common format applications
El coeficiente de correlacion biserial ([r.sub.bis]) se calcula para determinar el grado en que las competencias que mide el test tambien las mide el reactivo.
Nivel de dificultad y poder de discriminacion del Examen de Habilidades y Conocimientos Basicos (EXHCOBA)
On this occasion 14 of the 16 point biserial correlations computed across the 30 subjects for each card were positive as predicted (p [less than] .005, binomial test, one-tailed).
Deciding before you think: relevance and reasoning in the selection task
El criterio de seleccion de los reactivos fue que cumplieran con los siguientes requisitos: (a) grado de dificultad en un rango de 0.2 a 0.8, con un promedio cercano a 0.5, con lo que se pretende seleccionar aquellos reactivos que, para esta muestra, presenten adecuados indices de discriminabilidad y que la distribucion de los puntajes de los sujetos sea lo mas normal posible; (b) correlacion biserial puntual igual o superior a 0.3; (c) distribucion homogenea entre los distractores y (d) porcentaje de omisiones no mayor a un 20%.
Inventario del desarrollo de habilidades comunicativas McArthur-Bates (CDI): propuesta de una version abreviada
The evaluation of the integrative neuropsychological parameters of subcortical-frontal function as disease liability factors was defined by calculating the point biserial correlation coefficients on the basis of the means and standard deviations of patients' and healthy controls' features, taking into account the prevalence of schizophrenia in the common population.
Integrative neuropsychological characteristics of subcortical-frontal brain regions as a schizophrenia liability factor
Al calcular la formula 16, para el coeficiente phi biserial ([[fi].sub.bis]), se obtenian valores mayores a 1 en los estudios 6, 7 y 11:
Comparacion entre indices de tamano del efecto para variables dicotomizadas en Meta-analisis
Notes: Uncorrected correlations are point biserial correlations.
The predictive validity of the EPI and 16PF for military flying training
For categorical variables Phi Coefficient (2 x 2 table) and Cramer's Phi (larger than 2 x 2 table) were used, and for one continuous and one categorical variable, the point biserial correlation coefficient was used (Lindeman, Merenda, & Gold, 1980).
Psychosocial variables associated with teenage pregnancy
Item analysis revealed that all items had at least a .30 point biserial correlation with the total score.
Falling through the cracks: rehabilitation services for adults with learning disabilities
Significant point biserial correlation [rpbi (1478) = .3019, p <.01] between FRP and place of residence also indicate that FRP varies significantly according to place of residence (table 4).
Socioeconomic and demographic correlates of female role perception among women in Bangladesh

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