Formerly of Division of Child and Adolescent Psychiatry, University of Cape Town, Cape Town, Republic of South Africa.
Int J Soc Psychiatry. 2012 Jan;58(1):47-54. doi: 10.1177/0020764010382700. Epub 2010 Sep 8.
The Camberwell Assessment of Need (CAN) is a widely used instrument to assess the service needs for people with a severe mental illness. No reliability data are available for its use in South Africa.
Interrater and test-retest reliability were documented for a sub-sample of 194 patients participating in a needs assessment study among people receiving mental health services. Initially, the CAN was administered by one field worker, while another observed and also made ratings. The participant was then re-interviewed approximately one week after the initial interview.
With the exception of 'psychotic symptoms' (κ = -0.4) and 'looking after home' (κ = 0.008), Cohen's κ coefficients for interrater reliability ranged from 0.150 to 0.760 for Section 1 of the CAN. Test-retest reliabilities for Section 1 resulted in moderate to substantial agreement, with Cohen's κ coefficient ranging from 0.25 to 0.81. High correlations were reported for the test-retest reliabilities of the remaining sections of the CAN (r = 0.719-0.845). However, the figures for the interrater reliabilities were lower and more variable (r = -0.082-0.408).
The results of this study suggest that with additional interviewer training, the CAN is a relatively reliable instrument for assessing the needs of youths with severe mental illness.
Camberwell 需求评估（CAN）是一种广泛用于评估严重精神疾病患者服务需求的工具。在南非，尚未有关于其使用的可靠性数据。
对参与心理健康服务人群需求评估研究的 194 名患者的子样本进行了评估者间信度和重测信度的评估。最初，由一名现场工作者进行 CAN 评估，另一名观察者进行观察并进行评分。大约在初次访谈一周后，对患者进行再次访谈。
除了“精神病性症状”（κ=-0.4）和“照顾家庭”（κ=0.008），CAN 第 1 节的评估者间信度的 Cohen's κ系数范围为 0.150 至 0.760。第 1 节的重测信度结果显示，具有中度至高度一致性，Cohen's κ系数范围为 0.25 至 0.81。CAN 其余部分的重测信度报告了较高的相关性（r=0.719-0.845）。然而，评估者间信度的数值较低且更具变异性（r=-0.082-0.408）。
本研究结果表明，经过额外的访谈者培训，CAN 是一种相对可靠的评估严重精神疾病青少年需求的工具。
