Module 5 Flashcards
Refers to the accuracy and precision of research tool
Reliability
The ‘extent to which scores are obtained’ when the instrument is used with some samples on separate occasions
Stability of the measurement
A ‘one that can be repeated over and over’ (at different times) on the same subject research
Stable research instrument
Define the type of concept: intelligence
stable concept
Define the type of concept: pain
unstable concept
Define the type of concept:
it can be ‘measured repeatedly’, at regular intervals, and to ‘obtain the same score’
stable concept
Define the type of concept: changeable
unstable concept
The ‘repeated measurements over time using the same instrument’ on the research subjects
test-retest
This test of stability is used in interviews, examinations, and observations
test-retest
This method has the same basic elements as test/retest
repeated observations
This instrument shows that ‘all indicators or sub parts measures the same characteristics or attributes of the same variables’
internal consistency
What are the test of stability?
test-retest
repeated observation
What are the test of the internal consistency?
split half correlation
cronbach’s alpha coefficient
scores on one half of a subjects responses are compared to scores on the other half
split half correlation
a measure of internal consistency, that is, “how closely related as a set of items are in a group”
cronbach’s alpha coefficient