To what extent does g impact on conceptual, practical and social adaptive functioning in clinically referred children?
Tiny IQ gains still lift daily living and social skills in kids with low IQ—so keep brief cognitive warm-ups in your sessions.
01Research in Context
What this study did
The team looked at the kids sent to a clinic for low IQ or slow development.
They gave each child a full IQ test and asked parents to fill out the ABAS-II.
The ABAS-II measures three areas: thinking skills, daily living skills, and social skills.
Then they used stats to see how much "g" (general intelligence) predicted each area.
What they found
Even in this low-IQ group, small rises in g boosted all three skill areas.
Thinking skills rose the most (65 % of the difference), then daily skills (60 %), then social skills (51 %).
In plain words, a tiny gain in IQ still meant clearer self-care and friend skills.
How this fits with other research
Peters et al. (2013) saw the same skill order in adults with profound ID: personal best, domestic middle, community weakest.
The new child data match that pattern, so the rank seems lifelong.
Kaufman et al. (2010) found kids with ID misread social cues on purpose tests.
Our study shows the same kids also score low on parent-rated social skills, so both lab and life measures line up.
Lin et al. (2009) linked higher BMI to blood problems, not IQ.
Together the papers say: watch weight, but keep teaching thinking games—both matter.
Why it matters
You can’t raise IQ 20 points, but you can aim for micro-gains.
Add brief memory or sorting games right before self-care routines.
A one-point IQ bump still widens the gap between needing help and doing it alone.
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02At a glance
03Original abstract
BACKGROUND: Previous analyses have found variable results when evaluating the size of the association between intellectual ability and adaptive functioning in individuals with impaired function. METHODS: We assessed the association between intellectual ability measured as a latent higher-order g and three different areas of adaptive functioning in a sample of clinically referred individuals with low IQ. RESULTS: Regressing g on conceptual, practical and social adaptive functioning yielded standardised regression coefficients of 0.65, 0.60 and 0.51 respectively. CONCLUSIONS: Results suggests that even at low levels of ability, increments in g still have important consequences for human functioning. Further, the influence of g may not be equally strong across different areas of human functioning.
Journal of intellectual disability research : JIDR, 2014 · doi:10.1111/jir.12092