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For example, if the fertilizer was spread by a tractor but no tractor was used on the unfertilized treatment, then the effect of the tractor needs to be controlled. A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable (i.e. confounding variables). [1]
This list of research methods in biology is an index to ... protein in a sample: Molecular biology, ... biology: Optogenetics: Uses light to control neurons that ...
A control variable (or scientific constant) in scientific experimentation is an experimental element which is constant (controlled) and unchanged throughout the course of the investigation. Control variables could strongly influence experimental results were they not held constant during the experiment in order to test the relative relationship ...
A clinical control group can be a placebo arm or it can involve an old method used to address a clinical outcome when testing a new idea. For example in a study released by the British Medical Journal, in 1995 studying the effects of strict blood pressure control versus more relaxed blood pressure control in diabetic patients, the clinical control group was the diabetic patients that did not ...
Digital Science & Research Solutions Ltd: Directory of Open Access Journals (DOAJ) [36] Multidisciplinary: 8,265,735 Articles from 18,652 open access journals (Dec 2022) Free Infrastructure Services for Open Access (IS4OA) DBLP [37] Computer science: 5,387,041 Comprehensive list of papers from major computer science conferences and journals Free
This is in contrast to laboratory experiments, which enforce scientific control by testing a hypothesis in the artificial and highly controlled setting of a laboratory. Field experiments have some contextual differences as well from naturally-occurring experiments and quasi-experiments. [1]