Dr. Taylor is conducting a study to test the effect of a new drug on people's ability to concentrate at work. His research sample consists of 100 US adults. During a 14-week period, half of the sample is administered the drug and the other half is administered a placebo, and participants' concentration abilities are continually tracked. In the context of this study, if Dr. Taylor uses random assignment, it means that ____.
a. his study will be high in external validity
b. the 100 adults in his study are likely to be representative of the larger population of interest
c. each research participant has an equal chance of being assigned to each level of the independent variable
d. his research findings are likely to be statistically significant
Question 2
Disgust has been shown to promote handwashing, avoidance of sex with risky partners, and other health-promoting behaviors. As such, disgust has been called our ___.
a. behavioral immune system
b. physiological immune system
c. catharsis mechanism
d. affect regulation system
Cover/Uncover Test
The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ...
The effect of thermal expansion
Normal and abnormal corneal light reflection test
Seattle Longitudinal Study
The ancestral and modern-day tomato. (b) Phenotypic effect of the fw2.2 transgene in the tomato