The superintendent of a large school district wonders whether her district has an overrepresentation problem. She compares percentages of the students in each racial group who are receiving special education to their percentages in the overall school population. Which calculation method is she using?
A) risk ratio
B) risk index
C) composition index
D) population density
C
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One way to reduce the probability of making a type I error is to ______.
a. make it easier to reject the null hypothesis b. increase sample size c. increase alpha (i.e., use .10 rather than .05) d. lower alpha (i.e., use .01 rather than .05)
To assess the efficacy of the new math curriculum, Ms. Jackson conducted a small experiment using two of her four sixth-grade math classes. She gave both classes a pretest, then taught Class A using the new curriculum and continued using the old curriculum with Class B. At the end of three months she administered a posttest to both classes. Which design did Ms. Jackson use in her experiment?
a) Factorial experimental b) Multiple-baseline c) Nonequivalent-groups pretest-posttest d) Randomized-groups pretest-posttest
One statement about adolescent development of executive function that is true is that ______.
a. adolescents become much more aware of the consequences of their actions, taking much more caution in their behaviors than in previous years b. adolescents have the ability to perform at a college level, but lack the hard knowledge required at that stage of schooling c. adolescents are improving their ability to control their thoughts and behaviors, but also have a greater tendency to respond impulsively in many situations d. executive function ceases developing until the age of 17, and in some cases, even regresses momentarily, explaining the impulsive behavior and voracious appetites teenagers often have
You need a reading/study system when you read college texts for all of the following reasons except: a. college texts are more difficult than high school textbooks. b. a reading/study system helps you become a passive reader. c. a reading/study systems helps you identify the point when comprehension breaks down
d. a reading/study system helps you prepare your text for later study.