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ERRATA

Description: Selection/skip pattern errors in Wave 10 AMP and Wave 11 knowledge items
Posted: 2012-Jul-10

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Seven respondents completed the same version of the Affect Misattribution Procedure (AMP) on both waves 9 and 10. All respondents should have been assigned different versions on the two waves. The case IDs of the affected respondents are 3230, 14648, 15759, 17978, 20793, 21470 and 24562. (An additional 26 respondents were assigned to the same version of the AMP on both waves but did not complete at least one of the waves and thus did not repeat an AMP.)

On wave 11, 25 respondents who were in the first recruitment cohort were asked six political knowledge questions (w11wv7 through w11wv12) that were intended only for members of the second cohort. The affected cases can be identified by cross-tabulating the cohort variable (reccohort) and the knowledge variables. Their case IDs are 95, 1237, 2068, 2272, 2499, 3156, 4100, 5214, 5619, 6331, 6477, 7710, 7725, 7910, 8416, 8706, 8919, 9374, 9432, 10987, 11278, 11608, 12946, 13214, and 13685.

We thank Timothy J. Ryan from the University of Michigan for noting these errors.



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