Detecting sequential patterns and determining their reliability with fallible observers
Detecting sequential patterns and determining their reliability with fallible observers
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DOI：
10.1037/1082-989x.2.4.357
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发表时间：
1997-12-01
影响因子：
7
通讯作者：
Robinson, BF
中科院分区：
文献类型：
--
作者：
Bakeman, R;Quera, V;Robinson, BF
在W. Gardner（1995）最近工作的基础上，讨论了易犯错误的观察者对观测研究的影响。分析表明，对于同易犯观察者，当码数少且其简单概率变时，kappa值低于码数多且大致等概率时的kappa值；因此，没有一种kappa的价值可以被认为是普遍接受的。进一步分析表明，当码数较少且其简单概率为变量时，可错度量对序列模式的指标有较大的降低。最后，一项模拟研究建立了由各种情况产生的序列指数的类内相关信度的可能值，并提出了选择序列长度和可接受的kappa水平进行观察研究的原则方法。
On the basis of recent work by W. Gardner (1995), implications of fallible observers for observational research are discussed. Analysis shows that for identically fallible observers, values for kappa are lower when codes are few and their simple probabilities variable than when codes are many and roughly equiprobable; thus no one value of kappa can be regarded as universally acceptable. Additional analysis shows that fallible measurement degrades indices of sequential pattern more when codes are few and their simple probabilities variable. Finally, a simulation study establishes likely values for intraclass correlation reliabilities for sequential indices generated by various circumstances and suggests principled ways to select both lengths of sequences and acceptable levels of kappa for observational studies.