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      Consistencia interna y análisis de factores de la escala APGAR para evaluar el funcionamiento familiar en estudiantes de básica secundaria Translated title: Internal Consistency and Factorial Analysis of Family Functioning APGAR Scale in Middle School Students

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          Abstract

          Antecedentes: existen varias escalas para valorar el funcionamiento familiar; no obstante, en Colombia desconocemos algunas propiedades psicométricas básicas de estos instrumentos en adolescentes estudiantes. Objetivo: evaluar la consistencia interna y conocer los factores de la escala APGAR para evaluar el funcionamiento familiar (APGAR familiar) en estudiantes de un colegio de Bucaramanga, Colombia . Método: se tomó una muestra no probabilística de 91 estudiantes de un colegio que diligenció el APGAR familiar. Esta es una escala tipo Likert que consta de cinco ítems. Se determinó la consistencia interna y se establecieron los factores que componen el instrumento. Resultados: la consistencia interna medida con la prueba de alfa de Cronbach fue 0,793. El análisis factorial mostró que la escala estaba compuesta por un único factor que explicaba el 55,6% de la varianza. Conclusión: la escala de APGAR familiar tiene una buena consistencia interna y está compuesta por un solo factor.

          Translated abstract

          Background: There are several scales available to evaluate family functioning. However, in Colombia, the basic psychometric properties of these tools among adolescent students are unknown. Objective: To evaluate of the internal consistency and the factors of the family APGAR scale in adolescent students attending a school in Bucaramanga, Colombia. Method: The study was conducted in a non-probabilistic sample of 91 students who filled out the family APGAR scale. This is a five-item Likert type scale. Internal consistency and the number of factors were established. Results: Internal consistency measured with Cronbach’ s alpha test was 0.793. The factorial analysis isolated only one factor that it explained 55.6% of the variance. Conclusion: The family APGAR scale has a good internal consistency and it is composed of a unique factor.

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          The family APGAR: a proposal for a family function test and its use by physicians.

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            Time-limit tests: Estimating their reliability and degree of speeding

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              Diagnosing tests: using and misusing diagnostic and screening tests.

              Tests can be used either diagnostically (i.e., to confirm or rule out the presence of a condition in people suspected of having it) or as a screening instrument (determining who in a large group of people has the condition and often when those people are unaware of it or unwilling to admit to it). Tests that may be useful and accurate for diagnosis may actually do more harm than good when used as a screening instrument. The reason is that the proportion of false negatives may be high when the prevalence is high, and the proportion of false positives tends to be high when the prevalence of the condition is low (the usual situation with screening tests). My first aim of this article is to discuss the effects of the base rate, or prevalence, of a disorder on the accuracy of test results. My second aim is to review some of the many diagnostic efficiency statistics that can be derived from a 2 x 2 table, including the overall correct classification rate, kappa, phi, the odds ratio, positive and negative predictive power and some variants of them, and likelihood ratios. In the last part of this article, I review the recent Standards for Reporting of Diagnostic Accuracy guidelines (Bossuyt et al., 2003) for reporting the results of diagnostic tests and extend them to cover the types of tests used by psychologists.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rcp
                Revista Colombiana de Psiquiatría
                rev.colomb.psiquiatr.
                Asociacion Colombiana de Psiquiatria. (Bogotá )
                0034-7450
                March 2006
                : 35
                : 1
                : 23-29
                Affiliations
                [1 ] Universidad Autónoma de Bucaramanga Colombia
                [2 ] Universidad Autónoma de Bucaramanga Colombia
                [3 ] Universidad Autónoma de Bucaramanga Colombia
                [4 ] Universidad Autónoma de Bucaramanga Colombia
                Article
                S0034-74502006000100003
                13dab7c6-8a33-4b41-945a-8b7e708c7fdc

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

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                SciELO Colombia

                Self URI (journal page): http://www.scielo.org.co/scielo.php?script=sci_serial&pid=0034-7450&lng=en
                Categories
                PSYCHIATRY

                Clinical Psychology & Psychiatry
                Validation studies,factor analyses,adolescent,students,estudios de validación,análisis de factores,adolescentes,estudiantes

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