PubMed Central (PMC3 - NLM DTD)
Mostrando recursos 161 - 180 de 526
A priori postulated and real power in cluster randomized trials: mind the gap
- Guittet, Lydia; Giraudeau, Bruno; Ravaud, Philippe
Lack of interchangeability between visual analogue and verbal rating pain scales: a cross sectional description of pain etiology groups
- Lund, Iréne; Lundeberg, Thomas; Sandberg, Louise; Budh, Cecilia Norrbrink; Kowalski, Jan; Svensson, Elisabeth
Methods for confidence interval estimation of a ratio parameter with application to location quotients
- Beyene, Joseph; Moineddin, Rahim
Investing in updating: how do conclusions change when Cochrane systematic reviews are updated?
- French, Simon D; McDonald, Steve; McKenzie, Joanne E; Green, Sally E
A randomised controlled trial to assess the effectiveness of offering study results as an incentive to increase response rates to postal questionnaires [ISRCTN26118436]
- Cockayne, Sarah; Torgerson, David J
A non-parametric framework for estimating threshold limit values
- Salanti, Georgia; Ulm, Kurt
Parametric versus non-parametric statistics in the analysis of randomized trials with non-normally distributed data
- Vickers, Andrew J
Stability of response characteristics of a Delphi panel: application of bootstrap data expansion
- Akins, Ralitsa B; Tolson, Homer; Cole, Bryan R
Protocol of the COSMIN study: COnsensus-based Standards for the selection of health Measurement INstruments
- Mokkink, LB; Terwee, CB; Knol, DL; Stratford, PW; Alonso, J; Patrick, DL; Bouter, LM; de Vet, HCW
Sequential boundaries approach in clinical trials with unequal allocation ratios
- Jafari, Peyman; Ayatollahi, Seyyed Mohammad Taghi; Behboodian, Javad
Room for improvement? A survey of the methods used in systematic reviews of adverse effects
- Golder, Su; Loke, Yoon; McIntosh, Heather M
Searching for observational studies: what does citation tracking add to PubMed? A case study in depression and coronary heart disease
- Kuper, Hannah; Nicholson, Amanda; Hemingway, Harry
Can electronic search engines optimize screening of search results in systematic reviews: an empirical study
- Sampson, Margaret; Barrowman, Nicholas J; Moher, David; Clifford, Tammy J; Platt, Robert W; Morrison, Andra; Klassen, Terry P; Zhang, Li
Does sampling using random digit dialling really cost more than sampling from telephone directories: Debunking the myths
- Yang, Baohui; Eyeson-Annan, Margo
CUSUM: A tool for early feedback about performance?
- Chang, Winston R; McLean, Ian P
Maximising response to postal questionnaires A systematic review of randomised trials in health research
- Nakash, Rachel A; Hutton, Jane L; Jørstad-Stein, Ellen C; Gates, Simon; Lamb, Sarah E
Evaluation of QUADAS, a tool for the quality assessment of diagnostic accuracy studies
- Whiting, Penny F; Weswood, Marie E; Rutjes, Anne WS; Reitsma, Johannes B; Bossuyt, Patrick NM; Kleijnen, Jos
Country development and manuscript selection bias: a review of published studies
- Yousefi-Nooraie, Reza; Shakiba, Behnam; Mortaz-Hejri, Soroush
Meta-DiSc: a software for meta-analysis of test accuracy data
- Zamora, Javier; Abraira, Victor; Muriel, Alfonso; Khan, Khalid; Coomarasamy, Arri
An alternative to the hand searching gold standard: validating methodological search filters using relative recall
- Sampson, Margaret; Zhang, Li; Morrison, Andra; Barrowman, Nicholas J; Clifford, Tammy J; Platt, Robert W; Klassen, Terry P; Moher, David
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