Data file: PIRLS 2006 - Population 1 - PIRLS Within-country Scoring Reliability File - All Countries v1.0
The within-country scoring reliability data files contain data that can be used to investigate the reliability of the PIRLS constructed-response item scoring. The scoring reliability data files contain one record for each booklet that was double\ scored during the within-country scoring reliability exercise (see Barth, Kennedy, & Trong, 2007). For each constructed-response item in the achievement test, the following three variables are included in the scoring reliability data files:
• Original Score Variable (achievement item response scores obtained from
the first scorer)
• Second Score Variable (achievement item response scores obtained from
the second scorer)
• Score Agreement Variable (degree of agreement between the two scores).