Children's gender schemas are most rigid during the ages:

Laboratory studies of etiological factors contributing to psychopath found a lack of _________ to be pervasive in individuals with antisocial personality disorder.

A. Intelligence B. Ambition and forward thinking C. Fear or anxiety D. Self-esteem

Lex is in the second grade. As part of a homework assignment, he is asked to write a sentence to describe a picture of a dog playing fetch. Lex writes the sentence, "Ball the dog has." Lex is clearly having trouble with ___________

A) phonemes B) morphemes C) pragmatics D) syntax