Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

Exercise 31

When we ask how much genetic factors and how much environmental factors contribute to intelligence, we are asking the (a) _____ question. One of the tools researchers use to study the interaction of nature and nurture is (b) _____, which is a number that indicates the amount or proportion of some ability, characteristic, or trait that can be attributed to genetic factors. The extent to which traits, abilities, or IQ scores may increase or decrease depending on environmental effects is called the (c) _____.