From: The Alexander Technique and musicians: a systematic review of controlled trials
Study | Described as randomised | Randomisation method described and appropriate | Assessor unaware of group allocation of subjects | Description of withdrawals and drop-outs | AT teacher | |
---|---|---|---|---|---|---|
Doyle 1984 [24] | Yes | Yes | No | Yes | 3 | Author |
Dennis 1987 [25] | Yes | No | Yes | Yes | 3 | 7 certified AT teachers (not including author) |
Valentine et al. 1995 [26] | Yes | No | Yes | Yes | 3 | 2 teachers employed for the study |
Lorenz 2002 [27] | Yes | No | Yes (questionnaires) | Yes | 3 | Author (without professional certification in AT) |
Egner and Gruzelier 2003 [28] | Yes | No | Yes | No | 2 | Not described |
Valentine and Williamon 2003 [29] | Yes | No | Yes | No | 2 | Qualified AT teacher |
Mozeiko 2011 [30] | Yes | Yes | Yes (questionnaires) | Yes | 4 | 9 certified AT teachers |
Barlow 1956 [31] | No | - | No | No | 0 | Author (AT teacher) |
Armstrong 1975 [32] | No | - | No | Yes | 1 | Author (qualified AT teacher) |
Nielsen 1988 [33] | No | - | Yes | Yes | 2 | Professional AT teacher |
Engelhart 1989 [34] | No | - | Yes | Yes | 2 | Certified AT teacher |
Hoberg 2008 [35] | No | - | Yes (questionnaires) | No | 1 | Author (not a registered AT teacher) |