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Convergent validity refers to how closely a test is related to other tests that measure the same (or similar) constructs. Here, a construct is a behavior, attitude, or concept, particularly one that is not directly observable. Ideally, two tests measuring the same construct, such as stress, should have a moderate to high correlation.
Convergent validity, along with discriminant validity, is a subtype of construct validity. Convergent validity can be established if two similar constructs correspond with one another, while discriminant validity applies to two dissimilar constructs that are easily differentiated.
Convergent validity is a type of criterion-related validity that demonstrates how well a measure correlates with other measures of the same construct. Convergent validity helps validate research findings by showing that different variables measuring the same concept are related in expected ways.
Convergent validity is the degree to which the same aspect of a single phenomenon or construct can be accessed and quantified by different models, whereas discriminant validity is the capacity of a model to measure different aspects of a single target phenomenon from those measured by related models.
Definition of convergent validity with examples and comparison to divergent validity. How correlation is used in convergent validity.
Convergent validity refers to how closely a test is related to other tests that measure the same (or similar) constructs. Here, a construct is a behaviour, attitude, or concept, particularly one that is not directly observable. Ideally, two tests measuring the same construct, such as stress, should have a moderate to high correlation.
Convergent validity states that tests having the same or similar constructs should be highly correlated. Two methods are often applied to test convergent validity. One is to correlate the scores between two assessment tools or tools’ sub-domains that are considered to measure the same construct.
Construct validity is about ensuring that the method of measurement matches the construct you want to measure. If you develop a questionnaire to diagnose depression, you need to know: does the questionnaire really measure the construct of depression? Or is it actually measuring the respondent’s mood, self-esteem, or some other construct?
Convergent validity is one way to demonstrate the validity of a test—whether it’s measuring the thing it’s supposed to. Specifically, convergent validity evaluates whether a test matches other tests of similar constructs.
High correlations between test scores of the same trait assessed using different methods typically indicate convergent validity, whereas discriminant validity is demonstrated by low correlations between different traits measured by the same or different methods.