PSYCH Exam 2 - Optimizing Intelligence

are enriched environments better?

- Deprivation early in life can impair intellectual development, but it doesn't prove that early massive stimulating children will lead to intelligence - Rat study: normal vs enriched OR enriched vs deprived?

environment & its impact on IQ

- Orphans adopted before age 2 had normal IQ levels - Orphans adopted after age 2 still remained below average IQ - Early environmental experience is important for intellectual development - Intervention studies meant to tweak early experience for children to influence IQ

arguments of institute that does hothousing

- brain grows most early in life (physical size) - Synaptogenesis and pruning (Growing synapses and pruning those that aren't useful --> Representative of learning, Brain interacting with environment, Useful synapses are reinforced, Tuning brain to what is important in the environment)

ABeCedarian program

- enhanced curriculum for socioeconomically disadvantaged students - Early (3 months old) - Children in intervention had higher IQ (even into high school) - Most of these programs are not successful like this - Most see early gain that is lost over time

Greater overlap in genes between siblings is associated with...

- greater similarity in IQs - Environment and genes are both involved in similar/different IQ scores

what are infant IQ tests based on

- habituation - Rate of habituation = processing speed - Intelligence as underlying speed of processing - Correlate with IQ measured 11 years later (r=.4) - Environmental factors, experiences in prenatal and postnatal, correlation due to other factors (socioeconomic status)

IQ test correlations after 7 years

High correlations (r=.8)

IQ test correlations after 3 years

Lower but still significant correlations (r=.4)

hothousing

To intensely educate young children

IQ scores are predicative of...

economic, academic, educational, employment, criminal convictions

When do IQ scores become stable?

middle childhood

what about parent's is indicative of IQ in children

parent education level

Weschsler Adult Intelligence Scale

the intelligence test that includes several subtests and measures both verbal and nonverbal abilities