161) The first true longitudinal study of the effects of giftedness on social success was conducted by a. Weschler. b. Spearman. c. Terman. d. Gardiner. 162) Research involving family and adoption studies have demonstrated that a. siblings reared together and cousins reared together have similar IQ correlations. b. the correlations between the IQ scores of cousins reared together are very strong. c. the correlations between the IQ scores of cousins reared together are negative. d. the higher the percentage of shared genes between people, the higher their IQ correlations will be. 163) Which of the following is representative of Sir Francis Galton’s perspective on the causes of IQ? a. Galton believed that intelligence was a trait that changed significantly over time. b. Galton believed that intelligence was determined 50% by environment and 50% by genes. c. Galton was an environmentalist and believed that social factors significantly influenced IQ. d. Galton was a hereditarian and believed that genes significantly influenced IQ. 164) Which of the following is true concerning “twin study†research findings? a. Fraternal twins have more similar IQ scores than identical twins. b. Identical twins and fraternal twins share similarly high IQ correlations. c. Identical twins have more similar IQ scores than fraternal twins. d. Identical twins raised together have less similar scores than identical twins raised apart. 165) If intelligence is determined primarily by heredity, which pair should show the highest correlation between IQ scores? a. Fraternal twins b. Identical twins c. Brothers and sisters d. Parents and children 166) Which of the following correlations of intelligence level would provide evidence for an environmental influence on intelligence? a. Brothers and sisters who have high intelligence b. Children and their parents who all have low intelligence c. Adopted children and their adoptive parents who have high intelligence d. Adopted children and their biological parents who have low intelligence 167) Which of the following individuals is likely to have an IQ that is most closely related to Darrell? a. Darrell’s neighbour Dave b. Darrell’s cousin Sarah c. Darrell’s sister Debra d. Darrell’s cousin Derreck 168) Twin studies have found that while certain aspects of intelligence appear to have a genetic basis, ________ intelligence has been explained better by environmental factors. a. performance b. verbal c. interpersonal d. practical 169) One potential confound in adoption studies is _______, wherein adoption agencies frequently place children in homes similar to those of their biological parents. a. adoptive precedent b. adoptive mandate c. selective placement d. restrictive placement 170) Regarding IQ similarities between parents and adopted children, which findings are most common? a. Biological parents do not tend to have much influence on their children’s IQs. b. Over time, the IQs of adopted children are more similar to their adoptive parents than their biological parents. c. Over time, the IQs of adopted children are more similar to their biological parents than their adoptive parents. d. Adoptive parents do not tend to have much influence on their children’s IQs.