Cancer Research UK Health Behaviour Research Centre, Department of Epidemiology and Public Health, UCL, Gower Street, London, UK.
Br J Cancer. 2009 Dec 3;101 Suppl 2(Suppl 2):S13-7. doi: 10.1038/sj.bjc.6605385.
We aimed to develop and validate a measurement tool to assess cancer awareness in the general population: the cancer awareness measure (CAM).
Items assessing awareness of cancer warning signs, risk factors, incidence, screening programmes and attitudes towards help seeking were extracted from the literature or generated by expert groups. To determine reliability, the CAM was administered to a university participant panel (n=148), with a sub-sample (n=94) completing it again 2 weeks later. To establish construct validity, CAM scores of cancer experts (n=12) were compared with those of non-medical academics (n=21). Finally, university students (n=49) were randomly assigned to read either a cancer information leaflet or a leaflet with control information before completing the measure, to ensure the CAM was sensitive to change.
Cognitive interviewing indicated that the CAM was being interpreted as intended. Internal reliability (Cronbach's alpha=0.77) and test-retest reliability (r=0.81) were high. Scores for cancer experts were significantly higher than those for non-medical academics (t(31)=6.8, P<0.001). CAM scores were higher among students who received an intervention leaflet than the control leaflet (t(47)=4.8, P<0.001).
These studies show the psychometric properties of the CAM and support its validity as a measure of cancer awareness in the general population.
我们旨在开发和验证一种用于评估普通人群癌症意识的测量工具：癌症意识量表（CAM）。
从文献中提取或专家组生成评估对癌症预警信号、风险因素、发病率、筛查计划和寻求帮助态度的认识的项目。为了确定可靠性，将 CAM 施用于大学参与者小组（n=148），其中一个子样本（n=94）在 2 周后再次完成。为了建立结构有效性，将癌症专家（n=12）的 CAM 评分与非医学学者（n=21）的评分进行比较。最后，将大学生（n=49）随机分配阅读癌症信息传单或带有对照信息的传单，然后再完成该量表，以确保 CAM 对变化敏感。
认知访谈表明，CAM 被按照预期进行解释。内部可靠性（Cronbach's alpha=0.77）和测试-重测可靠性（r=0.81）较高。癌症专家的得分明显高于非医学学者（t(31)=6.8，P<0.001）。接受干预传单的学生的 CAM 得分高于对照组（t(47)=4.8，P<0.001）。
这些研究表明了 CAM 的心理测量特性，并支持其作为普通人群癌症意识的测量工具的有效性。
