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Results tagged with reliability
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user 5829
A measure is said to have a high reliability if it produces similar results under consistent conditions. DO NOT confuse reliability with validity (see tag wiki). DO NOT use for inter-rater reliability which has its own tag inter-rater
10
votes
How is the Spearman-Brown prophecy formula affected by questions of differing difficulties?
Reliability is, by definition, the ratio of true score variance to observed score variance. … For the reliability of the individual items, it follows from the definition of essential parallelism that they have the same reliability, which we denote with $\rho = \sigma^2_T/(\sigma^2_T+\sigma^2_E) …
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9
votes
Computing repeatability of effects from an lmer model
Random intercepts and random slopes
Now for the second case, we have to first clarify what precisely is meant by "the reliability of effects (i.e. sum contrast effect of a variable with 2 levels)" -- …
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