Reliability:
Yields the same results repeatedly under the same circumstances
Test-retest reliability
Determines whether a measure yields the same results when given to an individual at 2 different points of time
Internal consistency
A measure is considered reliable if various parts of the measure yields similar or consistent results.
Interrater reliability
Determines consistency of responses when different judges or raters administer the measure
Validity:
Performs the function it was designed to perform
Predictive validity
Refers to the ability of a test or measure to predict or foretell how a person will behave, respond, or perform
Criterion-related validity
Determines whether a measure is related to the phenomenon in question
Construct validity
is actually a series of tasks with one common theme: all are designed to test whether a measure is related to certain phenomenon that are empirically or theoretically thought to be related to that measure
Content validity
Refers to the degree to which a measure is representative of the phenomenon being measured.
Reliability:
Yields the same results repeatedly under the same circumstances
Test-retest reliability
Determines whether a measure yields the same results when given to an individual at 2 different points of time
Internal consistency
A measure is considered reliable if various parts of the measure yields similar or consistent results.
Interrater reliability
Determines consistency of responses when different judges or raters administer the measure
Validity:
Performs the function it was designed to perform
Predictive validity
Refers to the ability of a test or measure to predict or foretell how a person will behave, respond, or perform
Criterion-related validity
Determines whether a measure is related to the phenomenon in question
Construct validity
is actually a series of tasks with one common theme: all are designed to test whether a measure is related to certain phenomenon that are empirically or theoretically thought to be related to that measure
Content validity
Refers to the degree to which a measure is representative of the phenomenon being measured.