Data for the Farewell and Herberg example of a two-phase design using a plaid design

The experiment that Farewell and Herzberg (2003) describe is a two-phase experiment. The first phase is a self-assessment phase in which patients self-assess for pain while moving a painful shoulder joint. The second phase of this experiment is an evaluation phase in which occupational and physical therapy students (the raters) are evaluated for rating patients in a set of videos for pain.<br>The R data file <code>plaid.dat.rda</code> contains the <code>data.frame</code> <code>plaid.dat</code> that has a revised version of the data for the Farewell and Herzberg example downloaded from https://doi.org/10.17863/CAM.54494. The comma delimited text file <code>plaid.dat.csv</code> has the same information in this more commonly accepted format, but without the metadata associated with the data.frame.<br>The <code>data.frame</code> contains the factors <code>Raters</code>, <code>Viewings</code>, <code>Trainings</code>, <code>Expressive</code>, <code>Patients</code>, <code>Occasions</code>, and <code>Motions</code> and a column for the response variable <code>Y</code>. The two factors <code>Viewings</code> and <code>Occasions</code> are additional to those in the downloaded file and the remaining factors have been converted from integers or characters to factors and renamed to the names given above. The response variable is <code>Y</code> and is unchanged from the column in the original file.<br>To load the data in <code>R</code> use: <code><br></code><code>load("plaid.dat.rda") or </code><code><code><br></code></code><code><code>plaid.dat </code>.</code>