In teaching her son to play basketball, Mrs. Richards initially reinforces him with praise for simply dribbling while standing still, then only for walking while dribbling, and finally only for running while dribbling. She is using a procedure known as:

According to the article Oh Rats!incorporating the study of Kim et al. on prenatal alcohol exposure,

psychology textbooks may well contain statements that are wrong because (a) most of them are at least 20 years old (b) they are written by authors who are not psychologists (c) psychology changes very fast as new information appears (d) errors occur because books must be produced so cheaply

Altruistic behavior toward nonrelatives is widespread in the animal kingdom

a. True b. False Indicate whether the statement is true or false