Comparing Vocabulary Knowledge Conceptualizations Among Spanish-English Dual Language Learners in a New Destination State

Is language translation enough in cross-cultural neuropsychological assessments of patients from Latin America?

OBJECTIVE

The purpose of this review was to highlight the need to consider factors other than language when adapting tests across cultural groups and to offer a list of tests that have been adapted for use among patients from or descended from Latin American Countries. Despite efforts in the field through publications and workshops, the authors were aware of continued errors in cross-cultural assessment of these patients, resulting in misdiagnosis and unintentional inequitable care. Thus, we sought to reinforce the existing literature.

METHOD

We reviewed the literature pertaining to cross-cultural adaptation of neuropsychological measures. Relevant papers were identified by our institution's Academic Enhanced Search Option (AcESO) Database, PubMed, and Google Scholar.

RESULTS

102 papers, articles, and other published literature were reviewed describing issues related to the adaptation of tests for groups originally from or descended from Latin American Countries residing in the United States.

CONCLUSIONS

It is imperative that tests be appropriately developed or adapted for the target population with appropriate normative data available, and ideally administered by a fluent speaker trained in assessment. Inappropriate use of tests not adapted for a particular patient's language and country of origin can result in misdiagnosis, potentially resulting in harm to the individual.

Bilingual Vocabulary Assessment: Examining Single-Language, Conceptual, and Total Scoring Approaches

PURPOSE

This study explored approaches for measuring vocabulary among bilingual children with varying levels of proficiency in Spanish and English.

METHOD

One hundred fifteen kindergarten and first-grade Spanish-English-speaking children completed measures of vocabulary and sentence repetition in Spanish and English. Scores were derived from their responses to the vocabulary measure: Spanish-only vocabulary, English-only vocabulary, conceptual vocabulary, and total vocabulary. Best language sentence repetition was also obtained. Using both visualization of data and statistical analysis, we tested for potential associations between children's relative language skills in Spanish and English and the scores they received on each of the vocabulary metrics.

RESULTS

Participants' single-language vocabulary scores were linearly associated with their relative language scores. Higher relative Spanish language skills corresponded with higher Spanish-only vocabulary scores, and higher English language skills corresponded with higher English-only vocabulary scores. A quadratic association between children's relative language and their conceptual vocabulary scores was observed. Children with more balanced skills in Spanish and English received lower scores for conceptual vocabulary. No association between total vocabulary and relative language was observed.

CONCLUSIONS

Results revealed evidence of differential test bias for single-language vocabulary scores and conceptual vocabulary scores. Spanish-only vocabulary underestimated knowledge of participants with higher English proficiency, whereas English-only vocabulary underestimated knowledge of participants with higher Spanish proficiency. Conceptual scoring yielded lower values for participants with relatively balanced proficiency in Spanish and English. There is need for further consideration of score and test functioning across the full continuum of bilinguals with dynamic proficiencies in each of their languages.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.23796330.

Psychometric Properties of the English-Spanish Vocabulary Inventory in Toddlers With and Without Early Language Delay

PURPOSE

Despite the increasing population of dual language learners (DLLs) in the United States, vocabulary measures for young DLLs have largely relied on instruments developed for monolinguals. The multistudy project reports on the psychometric properties of the English-Spanish Vocabulary Inventory (ESVI), which was designed to capture unique cross-language measures of lexical knowledge that are critical for assessing DLLs' vocabulary, including translation equivalents (whether the child knows the words for the same concept in each language), total vocabulary (the number of words known across both languages), and conceptual vocabulary (the number of words known that represent unique concepts in either language).

METHOD

Three studies included 87 Spanish-English DLLs (M age = 26.58 months, SD = 2.86 months) with and without language delay from two geographic regions. Multiple measures (e.g., caregiver report, observation, behavioral tasks, and standardized assessments) determined content validity, construct validity, social validity, and criterion validity of the ESVI.

RESULTS

Monolingual instruments used in bilingual contexts significantly undercounted lexical knowledge as measured on the ESVI. Scores on the ESVI were related to performance on other measures of communication, indicating acceptable content, construct, and criterion validity. Social validity ratings were similarly positive. ESVI scores were also associated with suspected language delay.

CONCLUSIONS

These studies provide initial evidence of the adequacy of the ESVI for use in research and clinical contexts with young children learning English and Spanish (with or without a language delay). Developing tools such as the ESVI promotes culturally and linguistically responsive practices that support accurate assessment of DLLs' lexical development.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.17704391.