Reliability and Validity Flashcards
Reliability Definition
consistency of findings, or the same operation yields the same results
Validity Definition
Truth or accuracy of results, or measuring of what you think you are measuring
Reliability and Validity Relationship
The fit between conceptualization and operationalization affects both reliability and validity
Reliability points
consistency of findings
measures: precision
Design robust operational protocol
Assessing Reliability
composite variables: internal reliability
multiple coders: interceder reliability
Split-half method
Test-retest
Piolet testing
Errors
can occur and can be random or systematic
Validity points
The truth/ accuracy
No calculations
Internal validity (study/measure):
Face validity
criterion-related validity
content validity
construct validity
Internal Validity
confidence that the results of a study are due to the variables being studied and not others
External Validity
how well the findings from a study can be generalized or applied to other situations to groups outside the study
