Experimental Studies
Experimental Studies - Related Videos
09:35
An Experimental System to Study Mechanotransduction in Fetal Lung Cells
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Cited by 7 •
2012
Mechanical forces play a key role in lung development and lung injury. Here, we describe a method to isolate rodent fetal lung type II epithelial cells and fibroblasts and to expose them to mechanical stimulation using an in vitro system.
08:12
Experimental Methods to Study Human Postural Control
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Cited by 25 •
2019
This article presents an experimental/analytic framework to study human postural control. The protocol provides step-by-step procedures for performing standing experiments, measuring body kinematics and kinetics signals, and analyzing the results to provide insight into the mechanisms underlying human postural control.
04:49
Realism in Experimentation
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2023
Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University In an ideal world researchers would conduct their studies in real world settings where behaviors naturally happen. For example, if you want to see what influences individuals’ voting behavior, it would be best to watch them vote. However, research in these settings is not always ethical or even practical. Further, a researcher may want more control over the setting to better pinpoint the exact...
06:12
Experimentation using a Confederate
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2023
Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University When orchestrating an experiment, it is important that the experience elicits the most natural reactions from the participants as possible. Researchers accomplish much of this through their creation of the experimental settings. Many research projects focus on interactions between two or more people. In these situations the environment or setting must often be less natural; often only one person...
10:13
Experimental Models to Study the Neuroprotection of Acidic Postconditioning Against Cerebral Ischemia
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Cited by 3 •
2017
Acidic postconditioning protects against cerebral ischemia. Here we present two models to execute APC. They are achieved respectively by transferring corticostriatal slices to acidic buffer after oxygen-glucose deprivation in vitro and by inhaling 20% CO2 after middle cerebral artery occlusion in vivo.
FAQs
Systematic assignment helps researchers compare groups under planned conditions while reducing the influence of other factors that could affect clinical outcomes. When the groups differ mainly in the intervention or exposure being examined, observed changes are easier to interpret as related to that factor. This strengthens evidence about cause and effect within the study.
A control condition provides a reference point for judging what happens without the investigated intervention or exposure. Comparing outcomes between the intervention and control conditions helps distinguish effects associated with the study factor from changes that might otherwise be observed. This comparison can clarify both potential benefits and possible limitations of a clinical approach.
Predefined outcomes establish what researchers will measure before assessing the results. They focus observation on specific effects relevant to the clinical question and create a consistent basis for comparing study conditions. Measuring these outcomes can reveal whether an intervention, preventive strategy, diagnostic approach, or procedure produces the intended result, as well as unwanted or limited effects.
Investigators first identify the intervention or exposure and the outcome to examine, then establish comparison conditions and a systematic assignment approach. They observe participants under the planned study conditions and measure the predefined outcomes. The resulting comparison helps determine whether the investigated factor is associated with benefits, risks, or limitations relevant to the clinical question.
These studies can evaluate treatments, preventive strategies, diagnostic approaches, and clinical procedures. Researchers select this approach when they need evidence about how deliberately changing a condition affects a defined clinical outcome. The findings can support evidence-based decisions by showing not only whether an approach appears beneficial, but also whether its effects include risks or important limitations.
Researchers must consider how closely the study conditions reflect the circumstances of patient care. Results can show benefits, risks, and limitations under the conditions examined, but those findings may not automatically apply in every clinical setting. Assessing this relationship helps determine whether the evidence can inform care decisions or should instead guide further research.