The study examined the quality and utility of online administration of the SelfDirected Search (SDS) to high school students in a career exploration workshop. An Internet-based SDS version was designed; it included automatic scoring and immediate feedback to test takers, providing a three-letter occupational code along with verbal explanation of the results. SDS was taken by participants in the...

This study aimed to validate the Beck Depression Inventory (BDI) in the Malaysian urological population. Reliability and internal consistency were evaluated using the test-retest method and internal consistency was assessed using Cronbach's alpha. Responsiveness was expressed as the effect size. Internal consistency was high (Cronbach's alpha value = 0.56 to 0.87). Test-retest correlation coeff...

OBJECTIVE Reporting the Physical Activity Questionnaire for school children's (PAQ-C) test-retest reliability and internal consistency. METHODS This was a descriptive study of 100 school-aged children aged 9 to 11 years old attending a school in Cartagena, Colombia. The sample was randomly selected. The PAQ-C was given twice, one week apart, after the informed consent forms had been signing b...

Reliability refers to accuracy and precision of a measurement instrument or scale. Reliability of test scores are estimated through measures of internal consistency has been characterized mathematically in many ways that appear, on the surface at least, to be very different to one another. The coefficient alpha is the most widely used measure of internal consistency for composite scores. In thi...

The paper considers various extended asymmetric multivariate conditional volatility models, and derives appropriate regularity conditions and associated asymptotic theory. This enables checking of internal consistency and allows valid statistical inferences to be drawn based on empirical estimation. For this purpose, we use an underlying vector random coefficient autoregressive process, for whi...

We propose the quasi-maximum likelihood method to estimate the parameters of an RCA(1) process, i.e. a random coefficient autoregressive time series of order 1. The strong consistency and the asymptotic normality of the estimators are derived under optimal conditions.

background: wolf motor function test (wmft) is used in the assessment of upper extremity motor function in stroke patients. this scale contains 15 items and assesses joint-segment movements and functional tasks. objectives: translation and assessment of internal consistency and reliability of the persian version of wmft in iranian stroke patients. materials and methods: after translation (based...

Bayesian internal consistency and its Bayesian credible interval (BCI) are developed and Bayesian internal consistency and its percentile and normal theory based BCIs were investigated in a simulation study. Results indicate that the Bayesian internal consistency is relatively unbiased under all investigated conditions and the percentile based BCIs yielded better coverage performance. Introduct...