Which of the following theorists placed the greatest emphasis on developmental events that occur early in life, especially during the first five years?

____________ tend to exhibit greater cerebral specialization; ___________ tend to have a larger corpus callosum

a. females; females b. Males; males c. Females; males d. Males; females

Izard (1987) claimed to have found four infant facial expressions that he believed were associated with the basic emotions of anger/rage, enjoyment/joy, fear/terror, and interest/excitement. What instrument did he use to assess this?

a. Maximally Discriminative Facial Movement Scoring System b. Child Behavior Checklist c. Infant Emotion Inventory d. Reactive Emotion Scale