IV. NIH Toolbox Cognition Battery (CB): measuring language (vocabulary comprehension and reading decoding)

Area of Science:

• Neuroscience
• Cognitive Psychology
• Developmental Psychology

Background:

• Language skills, including vocabulary comprehension and reading decoding, are crucial for daily functioning, health, and academic/professional success.
• Existing measures may not adequately assess these skills in individuals with varying literacy levels.
• The NIH Toolbox Cognition Battery (CB) aimed to develop comprehensive cognitive assessments.

Purpose of the Study:

• To introduce and validate new language measures for the NIH Toolbox Cognition Battery.
• To assess receptive vocabulary and oral reading recognition in English and Spanish.
• To provide reliable tools for evaluating language skills across different age groups and literacy backgrounds.

Main Methods:

• Development of the Toolbox Picture Vocabulary Test (TPVT) for receptive vocabulary assessment without literacy demands.
• Development of the Toolbox Oral Reading Recognition Test (TORRT) for assessing pronunciation of letters and words.
• Item calibration and validation studies were conducted for both measures.

Main Results:

• The TPVT assesses vocabulary by matching spoken words to pictures, bypassing reading and writing requirements.
• The TORRT evaluates the correct pronunciation of presented letters and words.
• Validation studies demonstrated the utility and reliability of these new language measures.

Conclusions:

• The TPVT and TORRT are valuable additions to the NIH Toolbox, offering accessible and accurate assessments of language skills.
• These measures can aid in identifying language strengths and weaknesses in diverse populations, including children and adults with reading or writing difficulties.
• The development and validation of these tools support a more comprehensive understanding of language and cognitive function.