Descriptive and Psychometric Analysis of MMI Stations: In addition to the mean scores, standard deviation and number of items for each station, the reliability coefficient using Cronbach's alpha, standard error of measurement
and item-total correlation of the scores on each station under study were determined.
85) For example, while Nebraska's intellectual disability statute specifies an apparent cutoff score for the intellectual disability defense, (86) courts in Nebraska have interpreted the statute as requiring the IQ results to "be considered, in light of the standard error of measurement
By failing to take into account the standard error of measurement
, [a bright-line cutoff] not only contradicts the test's own design but also bars an essential part of a sentencing court's inquiry into adaptive functioning.
In order to allow ease of comparison of reliability studies which examine USI, it has been advocated that the following statistical analyses are performed: intra-class correlation coefficients (ICC), standard error of measurement
(SEM), minimal detectable change score (MDC) and Bland-Altman plots (Whittaker and Stokes 2011, Whittaker et al 2007).
Intraclass correlation coefficients (ICC) and standard error of measurement
(SEM) were calculated for hip, knee, and ankle sagittal plane angular displacements.
0 standard error of measurement
at the 68% confidence interval).
Instead of evaluating accuracy using procedures recommended by Cone, accuracy within the CBM-R literature typically is referred to in terms of standard error of measurement
In addition to test-retest reliability, we established the standard error of measurement
(SEM) and minimal detectable change (MDC) for the SAM in individuals with iSCI.
Nevertheless, NAEP item blocks differ in difficulty, and the present study was undertaken to estimate the relation between block difficulty and average standard error of measurement
, as well as the resulting reduction in the standard error if students were to be assigned an optimal item block based on the measurement of their achievement provided by state assessment scores.
Noise in a test result is best expressed as the typical or standard error of measurement
derived from a reliability study.
The statistical technique used to determine a standard error of measurement
of the involved test means that there is inherent error.
From the range of the scores awarded to each student's answer, they were able to estimate the standard error of measurement
for that question and extrapolate that estimate to the overall performance of students on a degree scheme.