George Bush established a task force on "Surviving Bioterror." He wanted to determine the survival training program's effectiveness, so he studied at a university in Arizona and one in Nebraska. Because of restrictions set by the human subjects' committees, subjects could not be randomly assigned to a survivor training or control group. Instead, the researchers had to get people to volunteer for one group or the other. The results of the study are presented in Tables 2-3 below. Higher scores represent better survival skills (0 = poor; 10 = excellent). A difference of 1 point is statistically significant. Table 2. Mean survival skills scores at Arizona. Training Controls Pre-test 8 4 Post-test 9 8 Table 3. Mean survival skills scores at Nebraska. Training Controls Pre-test 4 4 Post-test 9 4 Upon us determining which of the two schools provides stronger results and 2 factors aside from training that would explain the Arizona results due to any threats to internal validity, the question is: what would be 2 ways we could describe that the problems at the Arizona test center could be avoided (how study could be improved) and why this approach would improve the study. Also, can Bush use Nebraska results to draw conclusions about the effectiveness of the training program if it were implemented in New York, help me understand why or why not.
George Bush established a task force on "Surviving Bioterror." He wanted to determine the survival training program's effectiveness, so he studied at a university in Arizona and one in Nebraska. Because of restrictions set by the human subjects' committees, subjects could not be randomly assigned to a survivor training or control group. Instead, the researchers had to get people to volunteer for one group or the other. The results of the study are presented in Tables 2-3 below. Higher scores represent better survival skills (0 = poor; 10 = excellent). A difference of 1 point is statistically significant. Table 2. Mean survival skills scores at Arizona. Training Controls Pre-test 8 4 Post-test 9 8 Table 3. Mean survival skills scores at Nebraska. Training Controls Pre-test 4 4 Post-test 9 4 Upon us determining which of the two schools provides stronger results and 2 factors aside from training that would explain the Arizona results due to any threats to internal validity, the question is: what would be 2 ways we could describe that the problems at the Arizona test center could be avoided (how study could be improved) and why this approach would improve the study. Also, can Bush use Nebraska results to draw conclusions about the effectiveness of the training program if it were implemented in New York, help me understand why or why not.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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We want to seek what 2 ways we could describe that the issues at the Arizona test center could be avoided (how study could be improved). How do weknow our approach would improve it? Also, can Bush use Nebraska results to draw conclusions about the effectiveness of the training program if it were implemented in New York, help me understand why or why not.
Transcribed Image Text:George Bush established a task force on "Surviving Bioterror." He wanted to determine
the survival training program's effectiveness, so he studied at a university in Arizona
and one in Nebraska. Because of restrictions set by the human subjects' committees,
subjects could not be randomly assigned to a survivor training or control group. Instead,
the researchers had to get people to volunteer for one group or the other. The results of
the study are presented in Tables 2-3 below. Higher scores represent better survival
skills (0 = poor; 10 = excellent). A difference of 1 point is statistically significant.
Table 2. Mean survival skills scores at Arizona.
Training
Controls
Pre-test
8
4
Post-test
9
8
Table 3. Mean survival skills scores at Nebraska.
Training
Controls
Pre-test
4
4
Post-test
9
4
Upon us determining which of the two schools provides stronger results and 2 factors
aside from training that would explain the Arizona results due to any threats to internal
validity,
the question is: what would be 2 ways we could describe that the problems at the
Arizona test center could be avoided (how study could be improved) and why this
approach would improve the study. Also, can Bush use Nebraska results to draw
conclusions about the effectiveness of the training program if it were implemented in
New York, help me understand why or why not.
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