Cumulative-deficit hypothesis refers to the notion that impoverished environments inhibit intellectual growth and that these inhibiting effects accumulate over time.

Related Articles

Environmental hypothesis at■■■■■
Environmental hypothesis refers to the notion that groups differ in IQ because the environments in which . . . Read More
Canalization at■■■
Canalization refers to genetic restriction of phenotype to a small number of developmental outcomes; . . . Read More
Equipotentiality at■■■
Equipotentiality is a term first coined by Flourens to describe the notion that mental abilities depend . . . Read More
Adoption method at■■
Adoption method refers to a method researchers use to study the relative effects of heredity and environment . . . Read More
Shared environment at■■
Shared environment is a Subtype of environmental influences that refers to the environmental factors . . . Read More
Multiplier effect at■■
Multiplier effect refers to the tendency for small genetic or prenatal influences to change the environment . . . Read More
Event at■■
- - - In psychology, an event refers to any occurrence or experience that an individual may have . . . Read More
Chronosystem at■■
Chronosystem is a term used in Ecological systems Theory that refer to changes in the individual or the . . . Read More
Experimental design at■■
Experimental design refers to a research design in which the investigator introduces some change in the . . . Read More
Genotype - environment effects at■■
Genotype - environment effects: Genotype - environment effects refers to Scarr and McCartney's theory . . . Read More