Chapter 6: Reliability and Validity in Research Flashcards
Reliability
In order to evaluate the stability or dependability of one’s measurements, one should carefully examine the measuring instruments
Random Error
Chance fluctuations in the measurements one makes are referred to as
Test-retest
To evaluate the _____ reliability of an instrument, one should administer the instrument to the same group of people on two different occasions
Internal-onsistency reliability
To evaluate the interrelatedness of the individual items on a test, one should evaluate the tests
External
When a researcher is concerned about the generalizability of the study’s results beyond the experimental situation, the researcher is interested in the _____ validity of the study
Effect size
What would one use to evaluate whether or not a study has been replicated
Content validity
Tests or questionnaires that consist of items that actually represent the kinds of material they are supposed to represent are considered to be high in which type of validity
Criterion Validity
Which type of validity is established by examining the predictive and concurrent validity of an instrument
Construct
Convergent validity and discriminant validity are important in evaluating the _____ of a test
Internal
The ability to rule out plausible rival hypotheses is critical for assessing which type of validity
Validity
When one speaks of __________, one is referring to how well a measure or research design does what it purports to do
Reliability
Questions involving the __________ of an instrument focus on how consistent or stable an instrument is
Retest Reliability
To estimate how much an instrument fluctuates from one administration to another, one would examine the test’s
Reliability of Components
The degree of relatedness of the individual items of a test is evaluated by examining the test’s
Spearman-Brown
In order to estimate the internal-consistency reliability of a test, one would use the __________ formula
External Validity
In order to evaluate the __________ of a study, one must examine the extent to which the relationship observed can be generalized across variations in persons, settings, and treatments
Criterion Validity
To assess __________, one examines the concurrent or predictive validity of an instrument
Construct Validity
To establish __________, one must find evidence of convergent validity and discriminant validity
Statistical-Conclusion Validity
To evaluate the __________ of a study, one would carefully examine the decisions made about the statistical significance of a finding.
Internal Validity
Ruling out plausible rival hypotheses is important in establishing the __________ of an experiment
