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The third section compares the statistical characteristics of the mixed option version against the fixed option versions of the test.
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They found significant differences in difficulty between 3- and 4-, and between 3- and 5-option versions of the three tests adapted to produce the different option versions, but found no differences between the 4- and 5-option versions.
A comparison of scores, facility, discrimination, reliability and validity from 3-, 4- and 5-option versions of the multiple choice test found little variation in the performance of the three option formats although higher numbers of options tended to increase difficulty and to spread responses between the options.
Using a group of 1000 Israeli subjects they found that the 2-option version of the test was easiest and least reliable with the difficulty of the formats increasing with the number of options, and concluded that the optimum number of options was greater than three.
In this case, the three-option version of the item is of acceptable quality and need not be further modified.
The development of the full, 5-option version of the decision aid has been described previously [ 3].
They also found no significant differences in the discrimination coefficients of the different option versions, but for two of the three tests used they found the 3-option version to be significantly more reliable than the 4-option version, while for the third test they found the 5-option test to be more reliable than the 4-option test.
However, you do have the option to view an alternative version of the feed if you would prefer.
They also agreed to add supplementary neighborhood map options — online versions of the proprietary maps already used in M.T.A. stations.
They are now available as a command line option for recent versions of TBLASTN and as an option for TBLASTN on the NCBI BLAST web server.
For those who viewed the 2-option version, 68% of participants selected colonoscopy without out-of-pocket costs, but only 41% selected colonoscopy when out-of-pocket costs were added.
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