3.5 Reliability tests
Consider
the following reliability tests:
·
Test –retest
·
Split half
method
·
KR 20
·
Cronbach
alpha
a)Which
one of them measure internal consistency? Which one them measure stability of a data collection tool like a questionnaire?
b)Discuss their main features of these reliability tests.
doctor i think no need to do that kind of test for secondary data. because they are already published one.for example annual reports are the main source of secondary data. but we have no need to do validity and reliability test for it.that data would be audited by someone.am i correct
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