reliability coefficient

"The reliability coefficients for the general cognitive index tend to run in the low 90's"

Results obtained by different investigators show that the reliability coefficients for memory span are quite high.

Of course, one does not want to inflate reliability coefficients by simply adding redundant items.

Use of the extension should improve test-retest reliability coefficients.

The alpha reliability coefficients for these scales run from .74 to .98.

In its general form, the reliability coefficient is defined as the ratio of true score variance to the total variance of test scores.

The average internal reliability coefficients across ages 15-17 for the PASS scales are:

The reliability coefficient provides an index of the relative influence of true and error scores on attained test scores.

The diagonal line is typically filled in with a reliability coefficient of the measure (e.g. alpha coefficient).

However, some scholars argue that the measurement tools involved are often unstandardized, sloppily employed and fail to report reliability coefficients.

Various reliability coefficients provide either lower bound estimates of reliability or reliability estimates with unknown biases.

Expressed in terms of Classical test theory, the correlation is divided by the square root of the product of the reliability coefficients of two tests.

All but one of these scores - identification of abnormalities, .57 - had a reliability coefficient of .65 or higher.

The Kosmos-3M launch vehicle, produced at the company since 1969, has established a reputation as one of the most reliable rockets in its class with a reliability coefficient of 0.97.

The internal consistency reliability coefficient for core and supplementary subtests demonstrate the KABC-II has good reliability.

A useful inter-rater reliability coefficient is expected (a) to be close to 0, when there is no "intrinsic" agreement, and (b) to increase as the "intrinsic" agreement rate improves.

The reliability coefficients for the WPPSI-III US composite scales range from .89 to .95.

Kuder-Richardson reliability coefficients for subtests ranged from .68 to .98, with about two-thirds of the coefficients reported ranging from .90 upwards.

The type of decision that the researcher is interested in will determine which formula should be used to calculate the generalizability coefficient (similar to a reliability coefficient in CTT).

The comparison of the two representative surveys of 1982 and 1999 showed that the structure of the FPI-R and test statistics, reliability coefficients, and even the standard values were highly reproducible.

Since test-retest reliability is difficult if not impossible to attain with patients suffering from aphasic symptoms, the current reliability coefficients demonstrate very good internal consistency in terms of what the items within the subtests are measuring.

The overall reliability coefficient for the OSCE of 382 items was .86 (Table 3), indicating good reliability of the OSCE total score [ 25 31 32 ] .

Reliability coefficients include Cronbach's alpha, Guttman's lambda, the Feldt-Gilmer Coefficient, the Feldt-Brennan coefficient, decision consistency indices, the conditional standard error of measurement, and reliability if item deleted.

By employing simulated D studies, it is therefore possible to examine how the generalizability coefficients (similar to reliability coefficients in Classical test theory) would change under different circumstances, and consequently determine the ideal conditions under which our measurements would be the most reliable.

Reliability theory in psychology (specifically, the reliability coefficient and the Spearman-Brown prediction formula) provides a mathematical estimate of the accuracy or validity of aggregated responses from the number of units being combined and the level of agreement among the units.