Role of compounding awareness in vocabulary knowledge among Chinese children with blindness and sightedness.

Ruibo and team tested 120 Chinese primary pupils. Half were blind, half sighted. All kids spoke Mandarin at home and used Braille or print in class.

The researchers gave two quick tasks. First, children heard two words like 'snow' and 'man' and said if they could blend them into 'snowman'. Second, they defined 40 vocabulary items. The goal: see if compounding awareness predicts vocabulary size.

Compounding skill explained vocabulary scores in both groups. The link was strongest for blind pupils in grades 1-3. For them, every extra compound item answered correctly added about four new words to their vocabulary list.

Sighted pupils also gained, but the boost was smaller and faded after grade 3. By grade 5, only the blind group still showed a clear compounding edge.

van Wingerden et al. (2017) saw a different pattern in children with mild intellectual disability. Those kids scored below peers on every early-literacy measure, including vocabulary. Ruibo’s blind sample, in contrast, kept pace when compounding was taught.

O'Hearn et al. (2011) and McGonigle et al. (2014) show that verbal short-term memory stops growing around age 10 in mild-borderline ID. Ruibo’s data hint at a brighter window: for blind pupils, the vocabulary lift from morphological training is largest before age 10, then tapers. Together, the papers draw a line: early grades matter most, but the lever is different—morphology for blindness, memory supports for ID.

Rong et al. (2023) found autistic children with language delays process Mandarin tones like younger toddlers. Ruibo’s pupils, blind or sighted, had typical phonology, so their vocabulary hurdle was word structure, not sound perception. The two studies map separate bottlenecks in Chinese-language learning.

If you work with blind or low-vision students learning Chinese, start compound-word games in first grade. Use tactile tiles or Braille cards to let kids build 'snow-man', 'basket-ball', 'birth-day'. Five minutes daily can add dozens of words to their repertoire before grade 4. For sighted pupils, the same games still help, but you can phase them out earlier and shift to context-rich reading.