IQ tests are constructed so that scores are normally distributed, with the average score at any age being 100, with a standard deviation of

In a study of severely impoverished Romanian children who were adopted into British families, the group that showed the least amount of improvement was the group that was:

a. youngest at the time of adoption b. oldest at the time of adoption c. adopted by older parents d. adopted by younger parents.

Regarding accommodation, which of the following statements is FALSE?

a. Accommodation is a monocular depth cue. b. Beyond four feet, accommodation has limited value. c. Accommodation involves the bending of the lens to focus on nearby objects. d. Accommodation is an important depth cue in driving a car or catching a ball.