During language development, the interactions between the adult and infant that include touching, vocalizing, gazing, and smiling are referred to as shared transformations

Which of the following is true regarding the findings of the Seattle Longitudinal Study pertaining to intellectual decline?

A. on average, plateauing in intellectual performance occurred during the early 50s B. by the age of 60 years, nearly all subjects declined on 50 percent of the tested variables C. few subjects showed a global decline in intelligence D. none of the answers are correct

A reflex is an involuntary response to a stimulus

Indicate whether this statement is true or false.