Tag | Value |
---|---|
file | Reliability_uu-reliability-017-en_uu-reliability-017-en |
name | uu-reliability-017-en |
section | Reliability |
type | schoice |
solution | FALSE, TRUE, FALSE, FALSE |
Type | Calculation |
Language | English |
Level | Statistical Literacy |
In Vedic education, transcendental meditation plays an important role. Through meditation techniques, students’ consciousness is expanded. In a questionnaire study of the effect of meditation on consciousness, an existing test with six items and a reliability rxx’ = .50 is extended by three equivalent items.
How high do you estimate the reliability of the extended test V for consciousness?
Explanation: The new test is 9 items long (6+3=9). The extension factor is 1.5 (9/6=1.5). The reliability of this manygde test is calculated using the following formula:
$r_{xx’} = $
Filling in gives:
$r_{xx’} = = = = 0.60 $