Sampling Utterances and Grammatical Analysis Revised (SUGAR): Quantitative Values for Language Sample Analysis...

Area of Science:

• Child language acquisition
• Developmental linguistics
• Speech-language pathology

Background:

• Understanding typical language development is crucial for identifying potential delays.
• Previous research has established language metrics for younger children.
• The 7-10 year age range requires further investigation for specific language measures.

Purpose of the Study:

• To investigate age-related changes in specific language metrics for children aged 7;0-10;11.
• To determine if mean length of utterance_SUGAR (MLU_S), total number of words (TNW), clauses per sentence (CPS), and words per sentence (WPS) change with age.
• To assess the utility of these metrics in documenting language development in school-aged children.

Main Methods:

• Collected conversational language samples from 112 typically developing children aged 7;0-10;11.
• Analyzed 50-utterance samples using a standardized language sampling protocol.
• Calculated four key language metrics: MLU_S, TNW, CPS, and WPS.

Main Results:

• Statistically significant age-related increases were observed in MLU_S, TNW, and WPS.
• CPS did not show a statistically significant age-related change in this age group.
• Three out of four analyzed metrics demonstrated developmental progression.

Conclusions:

• MLU_S, TNW, and WPS are sensitive to age-related language changes in children aged 7;0-10;11.
• These metrics, alongside CPS, can be valuable tools for assessing conversational language skills in this age group.
• Combined with data from younger children, these measures provide a comprehensive assessment framework from preschool through late elementary school.