Carmen, Jill, and Alexia are trying to quit smoking. Carmen delays when she has her first cigarette each morning and tries to delay it a little longer each day. Jill is gradually reducing the total number of cigarettes she smokes each day. Alexia quits smoking for one week, then quits again, a week at a time, continuing until she quits completely. Which of the following statements best describes
these procedures?
a. Carmen and Jill are each using a scheduled gradual reduction method that will most likely be successful, while Alexia is going "cold turkey" and will probably fail.
b. Jill is using an effective step-down method, while Carmen and Alexia are using the a less successful scheduled method and "cold turkey," respectively.
c. Carmen, Jill, and Alexia are all using different types of the scheduled gradual reduction method that have all proven to be effective.
d. Carmen, Jill, and Alexia are all using less effective methods and should switch to the more effective method of "cold turkey.".
C
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If a set of n = 9 difference scores has a mean of MD = 3.5 and a variance of s2 = 36, then the sample will produce a repeated-measures t statistic of t = 3.5/2
Indicate whether the statement is true or false
Calvin has been on a "pleasure binge" for the last three days. He has cleaned out his bank account spending the money on anything that gains his attention. He would be described as loud, elated, and hyperactive. A week ago he was feeling like a failure and was withdrawn and unhappy. Calvin would most likely be diagnosed with
a. schizophrenia. b. bipolar disorder. c. dysthymic disorder. d. dissociative disorder.
Cigarette smoking during pregnancy has no long-term effects for the offspring
Indicate whether the statement is true or false
When would a researcher want to implement a factorial design?
A) When he/she wants to study the effect of a single independent variable B) When he/she wants to study the effect of a single dependent variable C) When he/she wants to study the effects of multiple independent variables D) When he/she wants to study the effects of multiple dependent variables