Erbe Doris, Eichert Hans-Christoph, Rietz Christian, Ebert David
University of Cologne, Germany.
University of Erlangen, Germany.
Internet Interv. 2016 Jun 27;5:1-4. doi: 10.1016/j.invent.2016.06.006. eCollection 2016 Sep.
Computerized versions of well-established measurements such as the PHQ-9 are widely used, but data on the comparability of psychometric properties are scarce.
Our objective was to compare the interformat reliability of the paper-and-pen version with a computerized version of the PHQ-9 in a clinical sample.
130 participants with mental health disorders were recruited during psychotherapeutic treatment in a mental health clinic. In a crossover design, they all completed the PHQ-9 in both the computerized and paper-and-pen versions in randomized order.
The internal consistency was comparable for the computer (α = 0.88) and paper versions (α = 0.89), and highly significant correlations were found between the formats ( = 0.92). PHQ-9 total scores were not significantly different between the paper and the computer delivered versions. There was a significant interaction effect between format and order of administration for the PHQ-9, indicating that the first administration delivered slightly higher scores.
In order to reduce the required effort for the participants, we did not ask them to fill out anything but the PHQ-9 once in paper and once in computer version.
Our findings suggest that the PHQ-9 can be transferred to computerized use without affecting psychometric properties in a clinically meaningful way.
诸如PHQ-9等成熟测量方法的计算机化版本被广泛使用，但关于心理测量特性可比性的数据却很少。
我们的目的是在临床样本中比较纸质版和计算机化版PHQ-9的不同形式间的信度。
在一家心理健康诊所的心理治疗过程中招募了130名患有精神疾病的参与者。采用交叉设计，他们都以随机顺序完成了计算机化版和纸质版的PHQ-9。
计算机版（α = 0.88）和纸质版（α = 0.89）的内部一致性相当，并且两种形式之间发现了高度显著的相关性（ = 0.92）。纸质版和计算机版的PHQ-9总分没有显著差异。PHQ-9在形式和施测顺序之间存在显著的交互作用，表明第一次施测的得分略高。
为了减少参与者所需的工作量，我们除了让他们分别填写一次纸质版和一次计算机版的PHQ-9外，没有要求他们填写其他任何内容。
我们的研究结果表明，PHQ-9可以转换为计算机化使用，而不会以临床意义上的方式影响心理测量特性。
