Using IQ scores from 11-year-olds in 1932 and subsequent follow-up tests, Deary et al. (2004; 2006)found evidence for all of the following, EXCEPT:
A)A main effect of reduced mental test performance at age 80
B)A 0.66 correlation coefficient between IQ scores at the two time points
C)No relationship between sex and physical fitness at age 80
D)A significant relationship between IQ at 11 and physical fitness at age 80
E)A significance influence of social class on physical fitness at age 80

Question

Quizplus · Accepted Answer

The study did not investigate the relationship between sex and physical fitness at age 80, so there is no evidence for or against this relationship. The study did find evidence for a main effect of reduced mental test performance at age 80, a 0.66 correlation coefficient between IQ scores at the two time points, a significant relationship between IQ at 11 and physical fitness at age 80, and a significant influence of social class on physical fitness at age 80.

Using IQ Scores from 11-Year-Olds in 1932 and Subsequent Follow-Up