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T-DAV: Action naming test with videos. Development, validation and standardization

Manon Spigarelli¹, Maximiliano A Wilson²

¹Centre de formation universitaire en orthophonie de Besançon, Besançon, France

Geriatrie Et Psychologie Neuropsychiatrie Du Vieillissement

|August 5, 2022

Summary

A new French video-based action naming test, the T-DAV, effectively assesses verb-finding difficulties in conditions like aphasia and Alzheimer's disease, showing strong validity and reliability.

Keywords:

neuropsychological tests semantics psychometrics Alzheimer disease adult

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Area of Science:

Neurolinguistics
Clinical Psychology
Cognitive Neuroscience

Background:

Word-finding difficulties, especially for verbs, are common in post-stroke aphasia and neurodegenerative diseases like Alzheimer's.
Current action naming tests often use static images, which may be less effective than dynamic videos for assessing verb retrieval.
A need exists for a French-language action naming test utilizing video stimuli.

Purpose of the Study:

To introduce the T-DAV (Test de dénomination d'actions en Vidéo), a novel French action naming test employing videos.
To evaluate the psychometric properties of the T-DAV, including its validity and reliability.
To provide a clinically useful tool for assessing verb retrieval in French-speaking populations.

Main Methods:

The T-DAV consists of 20 video clips depicting actions (10 high-frequency, 10 low-frequency), matched for psycholinguistic variables.
Concurrent validity was assessed by correlating T-DAV performance with the DVL-38 (a French image-based action naming test).
Discriminant validity was examined by comparing performance between healthy individuals and Alzheimer's disease patients. Internal consistency was used to assess reliability.

Main Results:

The T-DAV demonstrated good concurrent validity, with performance correlating significantly with the DVL-38 test.
The T-DAV successfully differentiated between healthy participants and those with Alzheimer's disease, indicating good discriminant validity.
The test items exhibited strong internal consistency, confirming the reliability of the T-DAV.

Conclusions:

The T-DAV is a psychometrically sound tool for assessing action naming in French.
This video-based test addresses a significant clinical gap for evaluating verb retrieval difficulties.
The T-DAV provides normative data for French-speaking adults, enhancing its clinical utility.