INS NYC 2024 Program

Poster

Poster Session 11 Program Schedule

02/17/2024
10:45 am - 12:00 pm
Room: Majestic Complex (Posters 61-120)

Poster Session 11: Cultural Neuropsychology | Education/Training | Professional Practice Issues


Final Abstract #74

Hold Measures as Correlates of US and Mexico Wechsler Intelligence Scale -IV Full-Scale IQ Among Bilinguals

Gabriela Ontiveros, The University of Texas Rio Grande Valley, Edinburg, United States
Philip Gasquoine, The University of Texas Rio Grande Valley, Edinburg, United States

Category: Cross Cultural Neuropsychology/ Clinical Cultural Neuroscience

Keyword 1: bilingualism/multilingualism
Keyword 2: assessment
Keyword 3: premorbid functioning

Objective:

Hold measures can be used to estimate preexisting neuropsychological skill level in patients where such level deviates from the 50th percentile.  In this study vocabulary (picture and oral), Matrix Reasoning, and irregular word pronunciation as hold measures were correlated with US and Mexico Wechsler Intelligence Scale-IV (WAIS-IV) full-scale IQ in balanced bilingual Mexican Americans.

Participants and Methods:

Study participants were 20 adult (> 18 years), community dwelling, neurologically intact, Mexican American residents of the Rio Grande Valley, Texas who were subjectively able to carry on a conversation in both Spanish and English.  They were administered the Woodcock-Muñoz Language Survey-Revised Picture Vocabulary (WMLS-R PV) subtest, Test of Premorbid Functioning (TOPF)/Word Accentuation Test (WAT), and the WAIS-IV core subtests in two separate sessions (> 3 days apart) in Spanish and English in counterbalanced order. The five core subtests making up the Perceptual Reasoning and Processing Speed Indices were administered only once in the first session to avoid practice effects.  These subtests have the same format in the Mexican and U.S. versions of the WAIS-IV and so a single administration of raw scores could be converted to scale scores in both languages.

The WAT is a word pronunciation test of 30 infrequent Spanish words written without accentuation marks that was normed in Spain.

Results:

The mean age was 47.45 (SD = 15.62) and the mean years of education was 10.55 (SD = 3.85).  Most participants (n = 16) were born in Mexico with a mean number of years in the US of 32.20 (SD = 10.08).  Mean WMLS-R PV scores in Spanish were 87.70 (SD = 5.01) and in English were 86.80 (SD = 7.45), almost 1SD below the national monolingual means of 100 (SD = 15).  Overall, the sample was well balanced in terms of bilingualism.

In Spanish, the hold measures of WMLS-R PV (r [18] = .53, p < .05), WAIS-IV Vocabulary (.54, p < .05) and Matrix Reasoning (.85, p < .01) subtests scale scores all correlated significantly with WAIS-IV Full-Scale IQ. The WAT (-.39) was not significantly correlated.

In English, the hold measures of WMLS-R PV (r [18] = .72), TOPF (.70), WAIS-IV Vocabulary (.60) and Matrix Reasoning (.89) subtests scale scores all correlated significantly (p < .01) with WAIS-IV Full-Scale IQ.

Conclusions:

In Spanish, the highest hold correlate of WAIS-IV, Mexico was the Matrix Reasoning subtest scale score, with oral and picture vocabulary also correlating significantly and positively. The WAT was not suitable for this sample because the words are too infrequently used in the local dialect.

In English, the highest hold correlate of WAIS-IV was also the Matrix Reasoning subtest scale score, with oral and picture vocabulary, and irregular word pronunciation also correlating significantly and positively.

These results will assist clinical neuropsychologists in selecting performance-based hold measures to estimate preexisting skill level in the determination of neurocognitive impairment.