Which of the following can be an emotional symptom of sleep deprivation?

Seven-month-old Julius hears this conversation:

John: I want to go swim. John's dad: Do you want to swim in the pool? John: No, I want to swim in the lake. If Julius then hears the words "run" and "swim," what would you expect him to do? a. pay more attention to "run" than to "swim" b. pay more attention to "swim" than to "run" c. pay equal attention to "run" and "swim" d. say the words "run" and "swim"

Infant tests, such as the Bayley Scales, have been useful in predicting

a. developmental progress early in life. c. superior academic performance. b. academic success. d. superior athletic ability.