BMC Medical Research Methodology : PubMed Central (PMC3 - NLM DTD) http://biblioteca.universia.net/verColeccion.do?id=4044 Mostrando recursos 1 - 20 de 526 es Universia-Recursos de Aprendizaje http://biblioteca.universia.net/img/logotipo.jpg http://biblioteca.universia.net/ Scratch lottery tickets are a poor incentive to respond to mailed questionnaires http://biblioteca.universia.net/ficha.do?id=5347430 Finsen, Vilhjalmur; Storeheier, Andreas H Reviewer agreement trends from four years of electronic submissions of conference abstract http://biblioteca.universia.net/ficha.do?id=6176101 Rowe, Brian H; Strome, Trevor L; Spooner, Carol; Blitz, Sandra; Grafstein, Eric; Worster, Andrew How good is probabilistic record linkage to reconstruct reproductive histories? Results from the ... http://biblioteca.universia.net/ficha.do?id=6176102 Nitsch, Dorothea; Morton, Susan; DeStavola, Bianca L; Clark, Heather; Leon, David A The fading of reported effectiveness. A meta-analysis of randomised controlled trials http://biblioteca.universia.net/ficha.do?id=6180374 Gehr, Bernhard T; Weiss, Christel; Porzsolt, Franz Identifying systematic reviews of the adverse effects of health care interventions http://biblioteca.universia.net/ficha.do?id=6181004 Golder, Su; McIntosh, Heather M; Loke, Yoon Interval estimation and optimal design for the within-subject coefficient of variation for contin... http://biblioteca.universia.net/ficha.do?id=6181005 Shoukri, Mohamed M; Elkum, Nasser; Walter, Stephen D Using intervention time series analyses to assess the effects of imperfectly identifiable natural... http://biblioteca.universia.net/ficha.do?id=6181006 Gilmour, Stuart; Degenhardt, Louisa; Hall, Wayne; Day, Carolyn Optimizing search strategies to identify randomized controlled trials in MEDLINE http://biblioteca.universia.net/ficha.do?id=6941774 Zhang, Li; Ajiferuke, Isola; Sampson, Margaret Planning a cluster randomized trial with unequal cluster sizes: practical issues involving contin... http://biblioteca.universia.net/ficha.do?id=6951315 Guittet, Lydia; Ravaud, Philippe; Giraudeau, Bruno Intra-cluster correlation coefficients in adults with diabetes in primary care practices: the Ver... http://biblioteca.universia.net/ficha.do?id=6951403 Littenberg, Benjamin; MacLean, Charles D How much does pre-trial testing influence complex intervention trials and would more testing make... http://biblioteca.universia.net/ficha.do?id=6951570 Treweek, Shaun; Sullivan, Frank Reproducibility of the STARD checklist: an instrument to assess the quality of reporting of diagn... http://biblioteca.universia.net/ficha.do?id=6958811 Smidt, Nynke; Rutjes, Anne WS; van der Windt, Daniëlle AWM; Ostelo, Raymond WJG; Bossuyt, Patrick M; Reitsma, Johannes B; Bouter, Lex M; de Vet, Henrica CW The impact of imprecisely measured covariates on estimating gene-environment interactions http://biblioteca.universia.net/ficha.do?id=6958812 Greenwood, Darren C; Gilthorpe, Mark S; Cade, Janet E Multivariable risk prediction can greatly enhance the statistical power of clinical trial subgrou... http://biblioteca.universia.net/ficha.do?id=6959853 Hayward, Rodney A; Kent, David M; Vijan, Sandeep; Hofer, Timothy P The demise of the randomised controlled trial: bibliometric study of the German-language health c... http://biblioteca.universia.net/ficha.do?id=6968583 Galandi, Daniel; Schwarzer, Guido; Antes, Gerd Motor function in Parkinson's disease and supranuclear palsy: simultaneous factor analysis of a c... http://biblioteca.universia.net/ficha.do?id=6968753 Kroonenberg, Pieter M; Oort, Frans J; Stebbins, Glenn T; Leurgans, Sue E; Cubo, Esther; Goetz, Christopher G Circular instead of hierarchical: methodological principles for the evaluation of complex interve... http://biblioteca.universia.net/ficha.do?id=6969367 Walach, Harald; Falkenberg, Torkel; Fønnebø, Vinjar; Lewith, George; Jonas, Wayne B Country development and manuscript selection bias: a review of published studies http://biblioteca.universia.net/ficha.do?id=7960617 Yousefi-Nooraie, Reza; Shakiba, Behnam; Mortaz-Hejri, Soroush Meta-DiSc: a software for meta-analysis of test accuracy data http://biblioteca.universia.net/ficha.do?id=7961658 Zamora, Javier; Abraira, Victor; Muriel, Alfonso; Khan, Khalid; Coomarasamy, Arri An alternative to the hand searching gold standard: validating methodological search filters usin... http://biblioteca.universia.net/ficha.do?id=9435124 Sampson, Margaret; Zhang, Li; Morrison, Andra; Barrowman, Nicholas J; Clifford, Tammy J; Platt, Robert W; Klassen, Terry P; Moher, David