A significant difference between phase I and phase II reaching and grasping is
A. the reach and grasp occur simultaneously in phase II
B. the infant uses two hands when attempting to contact and acquire an object in phase I
C. once the reach has been completed, the child attempts the grasp in phase II
D. the reach is visually initiated and visually controlled in phase I
C
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Henry was adopted and is genetically predisposed toward alcoholism. However, his adoptive family does not drink; they actively avoid alcohol for religious reasons. Given Henry's genetic potential
he will most certainly become an alcoholic later in life. he may drink without worry as an adult because of his early upbringing. alcoholism might not appear in Henry's phenotype. alcoholism may alter his genotype.
Parents report dramatic improvements in their children's behavior (that is, a decrease in negative attentionseeking) when they
a. scold their children for their disruptive behavior. b. spank their children for their disruptive behavior. c. ignore all behavior except for the target behavior they wish to reduce and then use a strong aversive punishment. d. ignore their children's disruptive behavior and praise their child for being quiet or playing constructively.