Re: What statistical test to use?
- From: Dan Bolser <dan.bolser@xxxxxxxxx>
- Date: Thu, 19 Jan 2006 14:14:37 +0000
Ronald van den Berg wrote:
Dear all,
I am analyzing some data of a recent experiment that i did. Apart from ANOVA and t-tests i am not really familiar with applied statistics and i'm having some difficulties now in finding out what test to use for statistics on my data. Any help would be appreciated.
To give you an impression of the kind of data that it concerns, two example plots can be found at: http://www.ronaldvdberg.nl/temp/stat.htm
Roughly stated, the raw data consists of counts of (fixation) errors. Errors were discrete values, ranging from 0 to 9. The plots show the proportion of fixations associated to each error (I normalized all raw counts by dividing every count by the total count). So, the sum is 1 and the mean is 0.1 in both plots/datasets. The distributions in these two data sets are clearly different and my question is how i can properly test/show this ... ?
To compare two observed distributions, or to compare a single observed distribution to a theoretical distribution (with given parameters) the use of the Kolmogorov-Smirnov test is fairly standard.
Thanks.
Ronald
.
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