______ are variables that may be divided into two mutually exclusive categories while ______ consist of a theoretically infinite number of points lying between two polar opposites.
A. Continuous; dichotomous
B. Dichotomous; continuous
C. Facts; opinions
D. Scientific knowledge; correlational analysis
Ans: B
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A ballistic movement ____
a. is a rhythmic alternation between two movements b. is guided by feedback during the course of the movement c. proceeds automatically once it has been triggered d. tends to overcorrect itself
A problem with factor analysis is that:
A. factor loadings work are like correlations. B. researchers need to pay close attention to their initial selection of items. C. it leads to a less manageable number of traits. D. it reduces the number of traits being studied.
The sum of the squared deviations of participants' scores from the mean is called
a. the standard deviation b. the range c. the total sum of squares d. zero e. the variance
Which statement about the school dropout problem is true?
A. From the mid-twentieth century to the present, the percentage of U.S. young people completing high school by age 24 has remained stable. B. Of the 15 percent of high school students who do not graduate on time, more than two-thirds return to finish their secondary education by their mid-20s. C. Most high school students who do not graduate on time eventually earn a college degree. D. Most high school students who do not graduate on time never complete their secondary education.