standard deviation analysis
Mon, 04/19/2010 - 5:37pm
I did the "write report" with the software and when it printed it, it came up with a Standard Deviation of 9.38 for the right hand suggestive of high level of effort but under the left hand it said, "left hand grip scores did not produce a bell curve. As such, standard deviation analysis is not required."
Can someone help me understand why the software did this and what the statement means in case I have to go to deposition on this?
Thanks!
Jon Harrison, OTR/L, CWCE, CEES
Tue, 04/27/2010 - 12:23am
#2
Jon,
This statement means
Jon,
This statement means that since the client's scores did not produce a bell shaped curve, analysis of standard deviation is not warranted. In other words, someone could create a bell shaped curve that does not "jive" with analysis of the standard deviation anaysis. The "width" and "height" of the curve may be out of proportion to the test norms, and therefore indicates that although a bell shaped curve did exist, it was disproportionate.
So, from what I understand, the disproportionate bell shaped curve is suggestive of less than full effort right? Any suggestions on how to explain that to a referral source who asks about it? I am thinking I will just go in and change the language in the report if that happens next time.
Thanks for the response, Jim.
Jon