# Normative Data for the Adult Turkish Population and Validation Study in Mild Cognitive Impairment and Alzheimer's Disease of the TDQ‐30 Tr, a Color Picture‐naming Test for Adults and the Elderly

## TL;DR

This study adapts a naming test for Turkish speakers, establishes norms, and validates its use in detecting mild cognitive issues like Alzheimer's.

## Contribution

The study adapts and validates the TDQ-30 for Turkish speakers, providing population-specific norms and diagnostic utility.

## Key findings

- TDQ-30 Tr can differentiate between healthy individuals and those with Alzheimer's or mild cognitive impairment.
- Normative data for the Turkish population was developed, considering age, education, and sex.
- The test is effective in identifying mild anomia in Turkish-speaking adults and elderly.

## Abstract

Individuals with mild anomia often have difficulty finding words during conversations, even when they get normal results on standard language evaluations. The high frequency and familiarity of target objects may lead to the insensitivity of some naming assessments, complicating diagnosis. This study aims to adapt the Test de dénomination de Québec‐30 images (TDQ‐30) into Turkish, develop normative data adapted to the Turkish population, and determine its validity in Turkish‐speaking patients.

Data were collected from a total of 464 participants (414 healthy controls, 25 with Alzheimer's disease (AD), and 25 with mild cognitive impairment (MCI)) by using the Montreal Cognitive Assessment (MoCA), Boston Naming Test (BNT), Detection Test for Language Impairments in Adults and the Aged‐Turkish version (DTLA‐Tr), and Test de dénomination de Québec‐30‐Turkish version (TDQ‐30 Tr).

In Study 1, TDQ‐30 was translated into Turkish and checked for cultural appropriateness for the Turkish community. In study 2, the adapted version, TDQ‐30 tr, was applied to 414 healthy adults and elderly individuals to establish normative data for the test. In study 3, the analyses made known the validity of TDQ‐30 Tr, and it was found that TDQ‐30 can differentiate between healthy participants and those with AD and MCI, with healthy participants showing better results.

In summary, the TDQ‐30 Tr is an effective and dependable tool for identifying mild anomia associated with neurological impairments in Turkish‐speaking adults and the elderly. Its ease of use makes it a vital instrument for improving evaluation tools in research and clinical settings in Turkey.

This study aims to adapt the Test de dénomination de Québec‐30 images (TDQ‐30) into Turkish, develop normative data adapted to the Turkish population, and determine its validity in Turkish‐speaking patients. Data was collected from 414 healthy participants, 25 Alzheimer's disease (AD) patients and 25 mild cognitive impairment (MCI) patients by using Montreal Cognitive Assessment (MoCA), DTLA‐Tr, and TDQ‐30 Tr. Percentiles and cutoff scores were calculated by considering age, education level and sex. This study proves TDQ‐30 Tr is an effective and dependable tool for identifying mild anomia.