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Unformatted text preview: for why gender does not have a strong differential effect on the outcome. Copyright © 2002 by College Entrance Examination Board. All rights reserved. Advanced Placement Program and AP are registered trademarks of the College Entrance Examination Board. 8 AP® STATISTICS 2002 SCORING GUIDELINES (Form B) Question 3 (cont’d.) Separate subjects by gender into 2 blocks by Block 1 (Female) Block 2 (Male) Random assignment of females Random assignment of males Magnets No Magnets (or Placebo) Magnets No Magnets (or Placebo) Measure and compare self-reported level of pain Measure and compare self-reported level of pain Scoring Part (a) is Essentially correct if all three of the following are adequately addressed: treatments, random assignment, and response variable. It is acceptable for them to select the first group with an SRS, but only if it’s clear that the remaining subjects are automatically assigned to the second treatment group as opposed to taking a separate SRS. Note, if they describe a randomization scheme that results in an unequal number of subjects in each treatment group or does not involve randomization for each individual (such as flipping a coin t...
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This note was uploaded on 09/06/2013 for the course MATH AP Statist taught by Professor Mosby during the Spring '13 term at Silverton High School, Silverton.

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