Does anyone else see a problem with the data table on page 22 of that PDF file?
The paper mentions this criteria on page 22:
Cells in the “change” column where I did not receive both a
“before” answers and an “after” answer have been left blank.
Yet the data points at 15 8:30am, 16 8:30am, and 17 8:30am on page 22 all appear to have blank Before, present After, and a Change which is identical to the After column.
This also appears to affect the change column statistics on page 24, (8:30 a.m) and on page 26 (Both Classes Combined) For page 28, the people who only have one survey are dropped entirely, and I no longer see this problem.
Since he uses the statistics on page 28 for his conclusion, this may not change the conclusion, but I did want to point it out.
Thanks for pointing this out. There was in fact an error. I’ve fixed the error and updated the study. Some of the conclusions embedded in tables change; the final conclusions reported stay the same.
I’ve credited you on p.3 of the new version. If you want me to credit you by name, please let me know.
Does anyone else see a problem with the data table on page 22 of that PDF file?
The paper mentions this criteria on page 22:
Yet the data points at 15 8:30am, 16 8:30am, and 17 8:30am on page 22 all appear to have blank Before, present After, and a Change which is identical to the After column.
This also appears to affect the change column statistics on page 24, (8:30 a.m) and on page 26 (Both Classes Combined) For page 28, the people who only have one survey are dropped entirely, and I no longer see this problem.
Since he uses the statistics on page 28 for his conclusion, this may not change the conclusion, but I did want to point it out.
Thanks for pointing this out. There was in fact an error. I’ve fixed the error and updated the study. Some of the conclusions embedded in tables change; the final conclusions reported stay the same.
I’ve credited you on p.3 of the new version. If you want me to credit you by name, please let me know.
Thanks again!