Which of the following distributions can be symmetric?
a. unimodal
b. bimodal
c. normal
d. all of the above
D
You might also like to view...
Which of the following is a true dichotomous variable?
a. football players' numbers b. weight c. time d. gender
In a carefully controlled experiment, the only possible cause for any effect noted in the dependent variable is the
a. independent variable. b. extraneous variable. c. random assignment. d. random selection.
When Susanna encountered a large spider for the first time, her negative reaction was influenced by her knowledge that some spiders have dangerous bites. This interpretation of an emotional reaction supports a ________ explanation of emotional development
a. learning c. cognitive-socialization b. biological d. behavioristic
What is an important limitation of anecdotal evidence in developing scientifically sound treatments or procedures?
A) Anecdotes cannot help to establish cause-effect relationships. Correct. Anecdotes can describe an individual event, but they do not describe how one variable may cause changes in another variable. B) Anecdotes effectively address the issue of representativeness of the cases. Incorrect. Anecdotes are based on one individual's experience and do not describe other cases or situations. C) Anecdotes are extremely too easy for others to falsify. D) Anecdotes are generalizable to the population from which the individual giving the anecdote came.