Re: st: weighted kappa more than two raters

[Richard Goldstein <richgold@ix.netcom.com>]

1. I would use -kapwgt-

2. I can't judge your matrix since you don't show it (use -matrix li-)

Rich

On 1/14/14, 8:54 AM, Thoret, Sophie wrote:
> Ok so ill try to re-explain better :
> 
> I want to calculate a weighted kappa with 4 raters (this is a 10 outcome
> answer, that why i want to use a weighted kappa)
> 
> So I used the fonction :
>             kap var1 var2 var3 var4  , wgt(w)
> 
> 
> With the weight prerecorded : w
> So i think i don’t have to use first -kapwgt-  ?
> 
> If i did :  kap var1 var2, wgt(w)
> it’s work for 2 variables, but if i put more than 2 variables it does’t
> work, do you know how can i do to calculate a kappa with 4 variables and
> using a weigh ?
> 
> Thanks again ,
> 
> Le 14/01/2014 14:33, « Richard Goldstein » <richgold@ix.netcom.com> a
> écrit :
> 
>> your question is not clear to me but setting up a weight matrix is
>> described in the help file and in the documentation; have you looked?
>>
>> Rich
>>
>> On 1/14/14, 8:20 AM, Thoret, Sophie wrote:
>>> You said that i can¹t use the weight prerecorded ? Even if it¹s the good
>>> mat for each 2*2 raters
>>>
>>> So how can i recorded a mat for 3 or more raters ?
>>>
>>> Thanks
>>>
>>> Le 14/01/2014 14:10, « Richard Goldstein » <richgold@ix.netcom.com> a
>>> écrit :
>>>
>>>> sounds like you did not follow the instructions and use -kapwgt- first;
>>>> see -h kap-
>>>>
>>>> Rich
>>>>
>>>> On 1/14/14, 8:04 AM, Thoret, Sophie wrote:
>>>>> Hi,
>>>>>
>>>>> In the stata help for KAPPA we can see :
>>>>>
>>>>>   Interrater agreement, nonunique raters, variables record ratings for
>>>>> each rater
>>>>>
>>>>>         kap varname1 varname2 varname3 [...] [if] [in] [weight]
>>>>>
>>>>> Is it really possible to add weight with more than 2 raters, if yes
>>>>> how
>>>>> can i do it ? Because il i tape :
>>>>>        kap var1 var2 var3  , wgt(w)
>>>>> I¹ve got an error message :
>>>>>         option opts not allowed
>>>>>          r(198);
>>>>>
>>>>> I didn¹t find anywhere somethings about this topic,
>>>>>
>>>>> Can you help me,
>>>>>
>>>>> Thanks
>>>>>
>>>>> Sophie
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