Core Psychometric Principles Flashcards
6 cards from real TAPAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Core Psychometric Principles flashcards as text
What type of reliability is most relevant for evaluating TAPAS's consistency of measurement?
Answer: Internal consistency reliability estimated through IRT-based methods
Because TAPAS uses computerized adaptive testing where each person receives different items, traditional internal consistency measures are less applicable, and IRT-based reliability estimates are used instead.
What is construct validity in the context of TAPAS?
Answer: Whether the test actually measures the personality dimensions it claims to measure, supported by convergent and discriminant evidence
Construct validity evidence shows that TAPAS dimensions correlate with similar constructs measured by other personality tests and do not correlate with unrelated constructs, confirming they measure what they claim.
What is the bandwidth-fidelity tradeoff as it applies to TAPAS's measurement of personality?
Answer: The tradeoff between measuring broad personality factors versus narrow facets, where narrower measures predict specific criteria better
TAPAS chose narrow personality facets over broad factors because narrower measurement predicts specific criteria better, accepting some loss of breadth for greater predictive fidelity.
Why is measurement invariance important for TAPAS across demographic groups?
Answer: It ensures that the test measures the same personality constructs in the same way across gender, racial, and ethnic groups
Measurement invariance means TAPAS items function equivalently across demographic groups, ensuring that score differences reflect genuine personality differences rather than test bias.
What is the standard error of measurement and why is it important for interpreting TAPAS scores?
Answer: It quantifies the precision of each score, indicating the range within which the true score likely falls
The standard error of measurement indicates how precisely each dimension score has been estimated, with smaller errors indicating greater confidence in the score's accuracy.
How does TAPAS address the classical ipsative scoring problem inherent in forced-choice personality tests?
Answer: By using the MUPP-IRT model to recover normative scores from forced-choice responses
The MUPP-IRT model was specifically developed to extract normative, between-person comparable scores from forced-choice item responses, overcoming the traditional ipsative scoring limitation.