Table A1.
Dates and Reliabilities of Tests, with Dates for the Start and End of Each School Year.
| 1998–2000 |
2010–2013 |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Dates |
Test Reliability |
Dates |
Test Reliability |
||||||
| Mean | SD (days) | Reading | Math | Mean | SD (days) | Reading | Math | ||
|
| |||||||||
| Kindergarten | School starts | August 25, 1998 | 10 | August 25, 2010 | 10 | ||||
| Fall test | October 30, 1998 | 17 | .92 | .95 | October 14, 2010 | 27 | .91 | .92 | |
| Spring test | May 4, 1999 | 16 | .95 | .95 | April 6, 2011 | 22 | .93 | .94 | |
| School ends | June 5, 1999 | 11 | June 6, 2011 | 11 | |||||
| First grade | School starts | August 24, 1999 | 10 | August 24, 2011 | 10 | ||||
| Fall test | October 9, 1999 | 16 | .96 | .95 | October 12, 2011 | 24 | .94 | .93 | |
| Spring test | May 4, 2000 | 18 | .96 | .93 | April 6, 2012 | 23 | .94 | .93 | |
| School ends | June 3, 2000 | 11 | June 4, 2012 | 11 | |||||
| Second grade | School starts | August 24, 2012 | 9 | ||||||
| Fall test | .93 | September 29, 2012 | 23 | .92 | |||||
| Spring test | .91 | August 10, 2013 | 19 | .94 | |||||
| School ends | June 5, 2013 | 10 | |||||||
Note: Approximately 90 percent of the variance in test dates lies between schools, and 10 percent lies between children within schools.