The new fifth-grade teacher just arrived for her orientation session. The principal provided her with information on the class she will begin teaching next week,
including the group results on a state-required achievement test administered at the end of fourth grade. The principal tells the teacher that the students' average score was exactly at their grade level. What question should the teacher ask that will help her evaluate the information she has been given?
a) What is the correlation between IQ scores and the state test scores?
b) What percentage of the students come from homes that are in the poverty range?
c) What is the degree of variability or spread around the average score on that test?
d) What do the inferential statistics demonstrate about the scores obtained by this group of students?
ANS: c
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When you do not drink any fluids for several hours, your body sends information to your brain, causing you to be motivated to drink. This process is best explained by ____
a. ?instinct theory b. ?incentive theory c. ?drive-reduction theory d. ?arousal theory
As children's understanding of morality becomes more complex, they regard violations of purposeful conventions
A) as dependent on individuals' intentions. B) as closer to moral transgressions. C) to be less important than random convention transgressions. D) as the linkage to immoral beliefs.
An audience of 20-year-olds finds a series of off-color jokes highly amusing. A group of 50-year-olds finds the same jokes highly offensive. It is concluded that, as people age, their senses of humor become more rigid and narrow
The major difficulty in drawing conclusions of this sort is that _______. a. longitudinal studies cannot distinguish between age differences and generational differences b. cross-sectional studies cannot distinguish between age differences and generational differences c. longitudinal studies cannot distinguish between age differences and differences in the time at which measurements are taken d. cross-sectional studies cannot distinguish between age differences and differences in the time at which measurements are taken
Which statement is an accurate portrayal of a 10-year-old's social comparison?
A. "I'm a fast runner and I like soccer." B. "I'm really good at math." C. "Johnny pushed me and then took my toy truck." D. "I'm good at spelling, but there are three kids in my class who are better than I am."