Answer the following statements true (T) or false (F)
1 The matched samples technique eliminates the third-variable problem associated with correlational research
2 The third-variable problem means that the possibility of a third, causal variable is always present in correlational measurements
3 To conduct a true experiment, a variable must be manipulated by the experimenter
4 Identifying a group of children who watch violent television and a group of children who do not is an example of manipulating exposure to violent television
5 The variable that is manipulated in an experiment is the independent variable
1 False
2 True
3 True
4 False
5 True
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Freud called the id's need to satisfy its animalistic urges the:
a. the pleasure principle b. the idealistic principle c. the reality principle d. the sublimation principle
LTD in Purkinje cells is marked by influx of
A. calcium and potassium in the Purkinje cells. B. calcium in the Purkinje cells. C. sodium in the Purkinje cells. D. calcium and sodium in the Purkinje cells.
The drug ______ is used to treat depression
a. Valium c. Prozac b. Ritalin d. Tofranil
The ____________ include the testicles and ovaries, that is, organs that are needed for reproduction
A) primary sex characteristics B) secondary sex characteristics C) tertiary sex characteristics D) all of the above