I forgot to mention, try also -findit concord-. Concord takes the data
in wide format and gives you other statistics too (regarding agreement).
Best,
J.
____________________________________________________
Prof. John Antonakis
Associate Dean
Faculty of Business and Economics
University of Lausanne
Internef #618
CH-1015 Lausanne-Dorigny
Switzerland
Tel ++41 (0)21 692-3438
Fax ++41 (0)21 692-3305
http://www.hec.unil.ch/people/jantonakis&cl=en
____________________________________________________
On 15.01.2009 16:20, JOHN ANTONAKIS wrote:
> You should have the data in the long format for this to work, with
dummy (indicator) variable for x1 (=0) and x2(=1), not in the wide
format as you do now. Type -help loneway- to see the example they use.
To reshape the data look at the -reshape- command.
>
> HTH,
> John.
>
> ____________________________________________________
>
> Prof. John Antonakis
> Associate Dean
> Faculty of Business and Economics
> University of Lausanne
> Internef #618
> CH-1015 Lausanne-Dorigny
> Switzerland
>
> Tel ++41 (0)21 692-3438
> Fax ++41 (0)21 692-3305
>
> http://www.hec.unil.ch/people/jantonakis&cl=en
> ____________________________________________________
>
>
>
> On 15.01.2009 13:56, Sham Lal wrote:
>> Dear Statlisters
>>
>> I am looking to compare the ratings of pain between two observers x1
x2 and am using the loneway command to produce ICC's. However, I don't
completely believe that loneway is producing what I require. My data is
organised as follows:
>>
>> Idno pain_x1 pain_x2
>> A1 53 74
>> A2 62 23
>> B3 15 12
>> B5 86 52
>> The output after running loneway pain_x1 pain_x2 is as follows:
>> One-way Analysis of Variance for pain_x1:
>> Number of obs = 203
>> R-squared = 0.9025
>>
>> Source SS df MS F
Prob > F
>>
-------------------------------------------------------------------------
>> Between pain_x2 135346.15 68 1990.3846 18.25
0.0000
>> Within pain_x2 14613.739 134 109.05775
>>
-------------------------------------------------------------------------
>> Total 149959.89 202 742.3757
>>
>> Intraclass Asy. correlation
S.E. [95% Conf. Interval]
>> ------------------------------------------------
>> 0.85839 0.03899 0.78197 0.93481
>>
>> This is comparing the variation between just pain_x2, I fear this is
not correct?
>> Any help would be appreciated
>>
>> Sham
>>
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
