The threat to internal validity which involves participants dropping out of the study is known as:
a. history
b. maturation
c. attrition
d. testing
c. attrition
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According to ________, four sociological functions of substance abuse exist.
a. Bandura b. Ainsworth c. Thomas d. Thombs
Which of the following is true regarding the responsive evaluation model?
a) Focus is straightforward and does not alter b) Steps include initial planning and focusing; conducting observations; and organizing and reporting results c) It is a rarely used approach d) It gathers a synthesized version of data
To date, researchers have identified _______ subtypes of the GABA receptor, and the exact function of each __________.
a. more than 20; is still being explored b. more than 20; has been identified c. between 12 and 15; has been genetically isolated d. less than 20; is still being explored
According to Ivey, consciousness represents the psychological present. What is the typical length of the psychological present?
A) ?10 to 75 milliseconds B) ?100 to 750 milliseconds C) ?1 to 3 seconds D) ?None of the above