Smith studies a group of 1,000 people who have schizophrenia and who also have identical twins. He finds that 47% of the identical twins also develop this disease. The type of statistical information Dr. Smith's study reveals is called:
A) concordance
B) an H-E (Heredity-Environment) Index
C) a genetic-based percentage
D) analysis of variance

Question

Quizplus · Accepted Answer

The statistical information Dr. Smith's study reveals is called concordance, which is the probability that both twins will develop the same trait or disease. In this case, the concordance rate for schizophrenia in identical twins is 47%.

Smith Studies a Group of 1,000 People Who Have Schizophrenia