Experiments can determine cause-and-effect relationships with the suspected cause being the __________variable
a. mediating
b. independent
c. correlational
d. dependent
B
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High-quality, state-funded pre-K programs have the capacity to __________.
A. show no real effects on academic achievement B. produce some short-term benefits on achievement, but the gains disappear by the start of middle school C. reduce special education placements D. increase family dependency on state-funded programs
In a two-factor design, an interaction means that the effect of one factor depends on the levels of the second factor
a. True b. False Indicate whether the statement is true or false
A sample of college students was asked how long, in minutes, they spend getting ready for a date. Consider the following output: What can you conclude from this information?
a. Men and women do not differ in the amount of time it takes them to get ready for a date.
b. Men take longer than women to get ready for a date.
*c. Women take longer than men to get ready for a date.
d. This output does not provide enough information for interpretation.
The frequency theory of pitch perception suggests that pitch is determined by the
a) particular hair cells that are stimulated. b) number of hair cells that are stimulated. c) speed of vibration in the basilar membrane. d) specific neurotransmitters involved in neural conduction.