Incandescent light bulbs glow when the electricity passing through the ______________causes it to get very hot

Fill in the blank(s) with the appropriate word(s).


filament

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Approximately how many children were enrolled in U.S. public schools in 2010?

a. 45 million b. 47.5 million c. 50 million d. 55 million

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Nadine conducted a pretest-posttest control group design. The comparison group received traditional lecture of course content while the treatment group received the lecture and instructor-provided summary notes. She found, however, no differences between conditions, due in part to students sharing the instructor summaries across conditions. This is an example of

a. compensatory rivalry. b. treatment diffusion. c. placebo effect. d. experimenter effects.

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The sampling fraction is:

a. the ratio of population size to sample size. b. the ratio of sample size to population size. c. the number of units that have a nonzero probability of being selected. d. the number of units selected.

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When should school districts place students with special needs in a private school placement?

a. If no appropriate public facilities are available to effectively meet the needs of the student. b. If parents request it. c. If a student's disability is severe. d. If the public school cannot provide the absolutely best available treatment for the student. e. If the parents and the school cannot agree on an IEP.

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