An Overview of Coefficient Alpha and a Reliability Matrix for Estimating Adequacy of Internal Consistency Coefficients with Psychological Research Measures

Ponterotto, Joseph G.; Ruckdeschel, Daniel E.

doi:10.2466/pms.105.3.997-1014

Cited by 420 publications

(410 citation statements)

References 51 publications

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“…Reliability of the intrinsic motivation scales, the three extrinsic motivation subscales and amotivation scale were analysed using Cronbach's alpha. A value of .70 was regarded as an acceptable value (Ponterotto & Ruckdeschel, 2007). However, Cronbach's alpha is affected by sample size and number of items (Field, 2013).…”

Section: Resultsmentioning

confidence: 99%

Are team sport games more motivating than individual exercise for middle-aged women?

Wikman

Elsborg

Nielsen

et al. 2018

Kinesiology (Zagreb, Online)

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Abstract:The aim of this study was to investigate the levels of motivation associated with the participation in floorball (indoor hockey) and spinning, and how these levels of motivation predicted continuation. A sample of 66 middle-aged women participated in a 12-week intervention of either floorball or spinning. They filled out the Sport Motivation Scale in week 2 and week 11 of the intervention, and data was also collected on their continuation six and 12 months after the intervention. A repeated measures MANOVA showed that participants in the floorball group had higher levels of intrinsic and self-determined extrinsic motivation for the activity during the intervention period, suggesting that floorball is a more motivating activity. In addition, the introjected regulation extrinsic motivation increased in both groups during the intervention period. Intrinsic motivation, as well as extrinsic motivation introjected regulation, predicted participants' continuation six and 12 months after the intervention, suggesting that motivation as viewed in a Self-Determination Theory perspective is important for exercise continuation.

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Section: Resultsmentioning

confidence: 99%

Are team sport games more motivating than individual exercise for middle-aged women?

Wikman

Elsborg

Nielsen

et al. 2018

Kinesiology (Zagreb, Online)

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“…Scales with few items are generally found to produce lower internal consistency estimates than scales with more items (Ponterotto & Ruckdeschel, 2007;Streiner & Norman, 2008), and this consideration applies to the short ASSIST scales. Moreover, these results mirror the findings of a previous study using the short ASSIST scales with mixed-discipline master's degree students (Heinström, 2005), where Cronbach's α was 0.66 (deep approach), 0.63 (surface approach) and 0.67 (strategic approach).…”

Section: Factor Structure and Internal Consistencymentioning

confidence: 99%

Psychometric Properties of the Short ASSISTScales

Bonsaksen¹

2018

Uniped

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Background: The shortening of measurement scales may improve their feasibility, but may also affect the scales' measurement properties. This study investigated the psychometric properties of the short Norwegian Approaches and Study Skills Inventory for Students (ASSIST) among occupational therapy students.Methods: The students (n = 148) completed the Norwegian ASSIST and provided sociodemographic data. Scale structure was examined with Principal Components Analysis (PCA). Scale consistency was assessed with Cronbach's α. Bivariate associations between the full and short scales were examined with Pearson's r. Linear regression analyses were used to assess associations between scale scores and the students' average exam grade.Results: Three factors were confirmed, but one item did not fit within the deep approach scale. Cronbach's α for the scales ranged 0.64-0.71. The full-length scales were strongly associated with the corresponding short scales, r ranging 0.85-0.87. For the surface scales, the full-length and short scale scores were both associated with the students' average exam grade. For the strategic scale, only the full-length scale scores were associated with exam grade.Conclusions: The short scales of the Norwegian ASSIST have satisfactory psychometric properties and represent a feasible way of assessing students' study approaches in Norwegian higher education.

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“…Porém, o valor de 0,67 apresentado pela EISPE é apontado em estudos prévios como um valor de alfa bom 40 .…”

Section: Discussionunclassified

Construção e validação da Escala de Identificação de Sintomas Psicopatológicos em Escolares (EISPE)

Bittencourt

Vargas

2017

J. bras. psiquiatr.

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RESUMOObjetivo: Construir e validar a Escala de Identificação de Sintomas Psicopatológicos em Escolares (EISPE). Métodos: Trata-se de um estudo metodológico, realizado seguindo-se procedimentos teóricos: painel de juízes e estudo-piloto; experimentais, por meio de coleta com 201 crianças de seis a 12 anos; e estatísticos, com validação de construto testada por meio do Modelo Rasch e alfa de Cronbach. Resultados: Na análise do painel de juízes quanto a clareza e representatividade, cinco itens foram excluídos e, após o teste-piloto, um item foi excluído, chegando a uma versão preliminar da EISPE de 23 itens, avaliando seis aspectos. O Modelo Rasch apresentou a EISPE como unidimensional, com a maior parte dos itens ajustados ao modelo, exceto quatro deles que apresentaram valores de correlação item-total abaixo de 0,2, e outros dois que apresentaram funcionamento diferencial conforme o sexo das crianças: A confiabilidade dos itens foi 0,97, e o valor do alfa de Cronbach, de 0,67. Conclusão: A versão preliminar da EISPE apresentou qualidades psicométricas satisfatórias, o que sugere que esta é confiável para identificar sintomas psicopatológicos relacionados a ansiedade, humor, condutas sociais, atenção/atividade motora, padrões alimentares e uso/abuso de substâncias psicoativas em crianças com idades entre seis e 12 anos. ABSTRACTObjective: To construct and validate the Scale for the Identification of Psychopathological Symptoms in Schoolchildren (SIPSS). Methods: This methodological study was based on the following theoretical procedures: panel of judges and pilot study; experimental procedures for collecting data from 201 children aged from six to 12 years old; statistical procedures including construction validation, tested using the Rasch model and Cronbach's alpha. Results: Analysis by the panel of judges resulted in the exclusion of five items. Another item was also discarded after the pilot test, resulting in a preliminary version with 23 items assessing six aspects. The Rasch model indicated that the SIPSS is a one-dimensional scale and most items are adjusted to the model, except four items that presented an item-total correlation below 0.2 and two items that presented differential functioning depending on the children's sex: reliability of items was 0.97 and Cronbach's alpha was -0.67. Conclusion: The scale's preliminary version presented satisfactory psychometric properties, suggesting it is reliable for the identification of psychopathological symptoms related to anxiety, mood, social behavior, motor attention/activity, eating patterns, and the use/abuse of psychoactive substances among children aged from six to 12 years old.

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An Overview of Coefficient Alpha and a Reliability Matrix for Estimating Adequacy of Internal Consistency Coefficients with Psychological Research Measures

Cited by 420 publications

References 51 publications

Are team sport games more motivating than individual exercise for middle-aged women?

Are team sport games more motivating than individual exercise for middle-aged women?

Psychometric Properties of the Short ASSISTScales

Construção e validação da Escala de Identificação de Sintomas Psicopatológicos em Escolares (EISPE)

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