Based on your answer to the previous question, were any of the three types of drugs significantly different from each other? If so, which ones were significantly different from each other?

To study the effects of common drugs on cognitive performance, a researcher randomly assigned college students to one of three conditions. One group of students was served two cans of beer, another group was served two cups of coffee, and the third group (the control group) was served two glasses of orange juice. Then each participant was given a test of logical reasoning and the number of errors was recorded.

Alcohol Caffeine Orange Juice/Control
15 9 6
20 8 4
10 10 10
12 13 11
13 12 6


Ans: Yes, the alcohol mean was significantly greater than the orange juice/control mean.

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Clarence is a fifth-grade student with a learning disability. He and his classmates recently took a standardized reading achievement test. Clarence's percentile rank for that test was 20 . The norm group for this test did not include any students with learning disabilities. What inference can be made on the basis of Clarence's test scores?

a. Clarence is performing below grade level and therefore he should repeat the fifth grade. b. Clarence's scores cannot be meaningfully interpreted, given the standards for evaluation. c. Clarence's teacher has been unsuccessful in teaching him basic fifth-grade reading skills. d. Clarence's school is failing to meet his special learning needs.

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In person-centered planning, professionals are seen as

A) working as mobilizers of resources and supports to help individuals with intellectual disabilities meet their goals. B) largely irrelevant in planningwith individuals with intellectual disabilities. C) advising individuals with intellectual disabilities. D) planning everything for individuals with intellectual disabilities.

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Which of the following is most likely a mastery objective?

A. understand the concept of set theory B. add two two-digit numbers to a two- or three-digit sum C. prove geometric theorems D. solve equations

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Programs like Internet Explorer, Netscape, and Safari display text, images, and other information on a Web page at a Web site on the Internet. These programs are known as:

a. Blogs b. Browsers c. Newsgroups d. Search engines

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