AIP Sperimentale 2025, 31° Congresso annuale

Session

New perspectives for developing short forms of tests

Sep 12, 2025, 3:30 PM

Conveners

New perspectives for developing short forms of tests

• Ottavia Epifania (Università di Trento)

913. Measuring the Stability of Adaptive Psychological Assessment

Debora de Chiusole (Università di Padova)

9/12/25, 3:30 PM

Talk in simposio

While adaptive administration procedures are widely adopted in educational assessment, their application in psychological testing remains limited. A plausible reason for this delay may lie in the rigid administration rules required by classical test theory, that is all individuals receive the same items in the same order and must respond to all of them. These constraints are incompatible with...

565. New perspectives for developing short forms of tests

Ottavia Epifania (Università di Trento)

9/12/25, 3:30 PM

Methodology

Abstract complessivo di un simposio

As a general rule of thumb, the higher the number of items in a test, the better the measurement in terms of validity and reliability. However, there is a trade-off between the number of administered items and response quality. One of the challenges psychometrics and mathematical psychology have tackled is the development of short forms that could preserve the validity and reliability of...

575. More than a short form: Using adaptive assessments to optimize clinical insight from the first session

Umberto Granziol (Dipartimento di Psicologia Generale, Università degli studi di of Padova)

9/12/25, 3:45 PM

Methodology

Talk in simposio

Computerized adaptive assessment algorithms are a promising alternative to traditional fixed-length questionnaires in clinical assessment. Their ability to dynamically select the most informative items based on individual responses allows for substantial reductions in administration time while preserving the precision of trait estimation. As such, adaptive instruments function as personalized...

572. Shortening tests within competence-based knowledge space theory

Pasquale Anselmi (Università di Padova)

9/12/25, 4:00 PM

Methodology

Talk in simposio

Tests covering broad subject areas may consist of many items, resulting in long and tiring assessments. Nevertheless, computerized adaptive testing may not be a viable solution if the necessary hardware is unavailable or if fairness issues arise. The talk is framed within competence-based knowledge space theory, which enables the assessment of the latent set of attributes (such as skills or...

573. Natural selection for items: Evaluating a genetic algorithm for developing questionnaire short forms

Marcello Passarelli

9/12/25, 4:15 PM

Methodology

Talk in simposio

When developing short forms of questionnaires, the most common approach under classical test theory is to retain the items with the highest factor loadings on each factor. Although this strategy generally produces short forms that perform well on standard reliability and validity metrics, it can unduly narrow the construct being measured by favouring highly correlated, homogenous items.
This...

566. Will the suffering ever end? An item response theory algorithm for shortening tests

Ottavia Epifania (Università di Trento)

9/12/25, 4:30 PM

Talk in simposio

Item Response Theory (IRT) provides an ideal framework for shortening existing tests given the detailed information on the measurement precision of each item with respect to different levels of the latent trait. As such, brief yet psychometrically sound short test forms (STFs), can be developed to prevent the loss of quality in the response process due to the respondents' fatigue. This...

1010. General Discussion

Ottavia Epifania (Università di Trento)

9/12/25, 4:45 PM