When Children Considered to Have an Intellectual Disability Were Moved

Multiple Choice

When children considered to have an intellectual disability were moved from an orphanage to more stimulating environments,

A) their IQ test scores improved slightly.
B) they became better adjusted and happier, but did not improve intellectually.
C) their IQ test scores rose an average of 29 points.
D) their IQ rose sufficiently to allow reclassification from mildly to borderline intellectually disabled.