A(n) _____ design combines elements of both longitudinal and cross-sectional designs
Fill in the blank(s) with correct word
sequential
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Researchers studying the effects of caffeine tested the reaction times of women who first drank either a beverage with caffeine or a decaffeinated version of the same beverage. In this study, the reaction time of each participant would be:
a. a placebo b. a confounding variable c. the independent variable d. the dependent variable
When information in short-term memory is rehearsed, it:
a. still only lasts approximately 1/2 second b. can last indefinitely c. can last for up to 15 seconds d. can last for up to 5 minutes
The continuities of development are aspects that
a. show abrupt, sudden change with age. b. depend on the organism's intention. c. regress with age to simpler forms or types. d. remain stable over time or reflect the past.
A representative sample ______.
A. is always selected using random sampling B. is representative of all other samples C. resembles characteristics in the target population D. is an example of probability but not nonprobability sampling