马赛克
发表于 2025-3-28 16:24:52
Unequal Randomisation,able to allocate more participants to one trial arm compared with the other, i.e. to use unequal allocation. The ratio of group size can be as large as is desired; however, generally it does not exceed 3:1 and more commonly it is 2:1 or 3:2.
油膏
发表于 2025-3-28 18:50:46
http://reply.papertrans.cn/27/2690/268982/268982_42.png
合同
发表于 2025-3-28 23:38:27
http://reply.papertrans.cn/27/2690/268982/268982_43.png
affect
发表于 2025-3-29 05:33:47
Neuroanatomy and Cortical LandmarksThe problems of using pre- and post-test designs have been recognised by researchers from different disciplines for many years. The need for a concurrent control group has been recognised for at least 150 to 200 years (Chalmers, 2001).
gastritis
发表于 2025-3-29 07:36:25
http://reply.papertrans.cn/27/2690/268982/268982_45.png
音乐戏剧
发表于 2025-3-29 13:09:58
http://reply.papertrans.cn/27/2690/268982/268982_46.png
Melodrama
发表于 2025-3-29 18:19:31
http://reply.papertrans.cn/27/2690/268982/268982_47.png
懒洋洋
发表于 2025-3-29 23:42:40
Jean M. Bidlack,Amy L. ParkhillThe house of social science research is sadly dilapidated. It is strewn among the scree of a hundred journals and lies about in the unsightly rubble of a million dissertations. Even if it cannot be built into a science, the rubble ought to be sifted and culled for whatever consistency there is in it. (Glass et al., 1981)
半圆凿
发表于 2025-3-30 00:33:43
History of Controlled Trials,The problems of using pre- and post-test designs have been recognised by researchers from different disciplines for many years. The need for a concurrent control group has been recognised for at least 150 to 200 years (Chalmers, 2001).
不舒服
发表于 2025-3-30 05:28:27
http://reply.papertrans.cn/27/2690/268982/268982_50.png