Buchanan Tom, Ali Tarick, Heffernan Thomas M, Ling Jonathan, Parrott Andrew C, Rodgers Jacqui, Scholey Andrew B
Department of Psychology, University of Westminster, London, England.
Behav Res Methods. 2005 Feb;37(1):148-54. doi: 10.3758/bf03206409.
There is growing evidence that Internet-mediated psychological tests can have satisfactory psychometric properties and can measure the same constructs as traditional versions. However, equivalence cannot be taken for granted. The prospective memory questionnaire (PMQ; Hannon, Adams, Harrington, Fries-Dias, & Gibson, 1995) was used in an on-line study exploring links between drug use and memory (Rodgers et al., 2003). The PMQ has four factor-analytically derived subscales. In a large (N = 763) sample tested via the Internet, only two factors could be recovered; the other two subscales were essentially meaningless. This demonstration of nonequivalence underlines the importance of on-line test validation. Without examination of its psychometric properties, one cannot be sure that a test administered via the Internet actually measures the intended construct.
越来越多的证据表明，通过互联网进行的心理测试可以具有令人满意的心理测量特性，并且能够测量与传统版本相同的结构。然而，等效性不能被视为理所当然。前瞻性记忆问卷（PMQ；Hannon、Adams、Harrington、Fries-Dias和Gibson，1995）被用于一项在线研究，该研究探索药物使用与记忆之间的联系（Rodgers等人，2003）。PMQ有四个通过因素分析得出的子量表。在通过互联网测试的一个大样本（N = 763）中，只能恢复两个因素；另外两个子量表基本上没有意义。这种不等效性的证明强调了在线测试验证的重要性。如果不检查其心理测量特性，就无法确定通过互联网进行的测试是否真的测量了预期的结构。
