A two-factor study with two levels of factor A and three levels of factor B uses a separate group of n = 5 participants in each treatment condition. How many participants are needed for the entire study?
a. 5
b. 10
c. 25
d. 30
d
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Low-income families who got their food from Supplemental Nutrition Centers in three cities were recruited, and a group of aggressive children was identified. They were assigned randomly to a program called the Family Check-Up, which was designed to prevent conduct problems in the children by improving parenting practices, enhancing marital relationships, and helping with child care and housing. The control group received only nutritional services. After two years in the program, children in the treatment group __________.
A. were less aggressive based on teacher ratings B. were less aggressive in school, but improved behavior faded after two years C. had about the same levels of aggression as the control group D. were more aggressive because they modeled the aggression of other children in the program
Which statement best describes the biological system?
a. All the environmental influences on an individual's health b. All the processes through which a person becomes integrated into society c. All the processes necessary for the physiological functions of an organism d. All the mental processes central to making sense of experiences
The term used for reward learning is instrumental conditioning
Indicate whether the statement is true or false
Male or female sex organs that are present at birth are called:
a) primary sex characteristics. b) innate sex characteristics. c) secondary sex characteristics. d) hormonally determined sex characteristics.