Attempts:2 Average: 214 7. Visualizing variability researcher designs an interve

Question

Attempts:2 Average: 214 7. Visualizing variability researcher designs an intervention to combat racism. she also designs a questionnaire to measure ra cism so she can test the participants' level of racism before and after the intervention. She tests one version of her q uestionnaire with 45 statements and a shorter version with 12 statements. In both questionnaires, the participants respond ta each statement with a rating on a 5-point Likert scale with o equaling "strongly disagree and 4 equaling strongly agree." The overall score for each participant is the mean of his or her ratings for the different statements on the questionnaire. Look at the following graphs. Graph I graphs the results from the short version, and Graph It graphs the results from the long version. Graph I Graph II PANTS

Explanation / Answer

the range for graph I is smaller than the range for graph II (as we can see that rage of graph I is from ~0.8 to 3.2 which amounts to (3.2-0.8=2.4) while that for graph II is ~ 4-0=4.

mean for graph I is equal to the mean for graph II (as both graph are symmetric and centered at 2)

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