According to Erikson, what is the developmental challenge during early childhood?

In what proportion of families around the world does arranged marriage occur?

1/2 1/3 3/4 2/3

In the Brown-Peterson test, subjects read a trigram (an unpronounceable series of three letters), and are then asked to count backwards by threes from a given number. What is the purpose of having the subjects count backward?

A) To test if the subject can multitask. B) To test if they can remember how to subtract. C) To interfere with the subject's ability to rehearse the trigram. D) To determine if numerical and phonetic memories are stored in different areas of the brain.