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Author Question: In order to determine the effectiveness of a new vaccine that is alleged to cure "math anxiety," a ... (Read 146 times)

fnuegbu

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on: May 5, 2020
In order to determine the effectiveness of a new vaccine that is alleged to cure "math anxiety," a study was conducted. One thousand volunteer college students enrolled in math courses across the U.S. were chosen. The 1000 students were broken up into two groups. Those enrolled in calculus courses were given the real vaccine. The students in developmental (remedial) math courses were given a fake vaccine consisting of sugared water. None of the students knew whether they were being given the real or the fake vaccine, but the researcher conducting the study knew. At the end of the semester the students were given a test that measured their level of math anxiety. The students in the treatment group showed significantly lower levels of math anxiety than those in the control group. On the basis of this experiment the vaccine was advertised as being highly effective in fighting math anxiety.

This study can best be described as a
◦ survey using quota sampling.
◦ randomized controlled experiment.
◦ census.
◦ survey using stratified sampling.
◦ controlled placebo experiment.
Excursions in Modern Mathematics ¦ Tannenbaum ¦ 9th Edition
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Marked as best answer by fnuegbu on May 5, 2020

Liamb2179

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Reply #1 on: May 5, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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fnuegbu

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Reply 2 on: May 5, 2020
Thanks for the timely response, appreciate it

helenmarkerine

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Reply 3 on: Yesterday
Excellent

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