A natural experiment is a study in which individuals (or clusters of individuals) are exposed to the experimental and control conditions that are determined...

about subatomic particles). Uses of experiments vary considerably between the natural and human sciences. Experiments typically include controls, which...

A quasi-experiment is an empirical interventional study used to estimate the causal impact of an intervention on target population without random assignment...

quasi-experiments, in which natural conditions that influence the variation are selected for observation. In its simplest form, an experiment aims at predicting...

N.U.D.E.@ Natural Ultimate Digital Experiment is a life simulation video game released for the Xbox and is only released in Japan. It is a simulation-style...

Field experiments are experiments carried out outside of laboratory settings. They randomly assign subjects (or other sampling units) to either treatment...

blind or blinded experiment, information which may influence the participants of the experiment is withheld until after the experiment is complete. Good...

social experiment is a method of psychological or sociological research that observes people's reactions to certain situations or events. The experiment depends...

In statistics, a full factorial experiment is an experiment whose design consists of two or more factors, each with discrete possible values or "levels"...

native wages or employment rates. It followed the Mariel boatlift, a natural experiment when 125,000 Cubans (Marielitos) came to Miami after a sudden relaxation...

Monte Carlo methods, or Monte Carlo experiments, are a broad class of computational algorithms that rely on repeated random sampling to obtain numerical...

The Bobo doll experiment (or experiments) is the collective name for a series of experiments performed by psychologist Albert Bandura to test his social...

estimated by comparing behavior before and after the allocation. A natural experiment happens when some feature of the real world is randomly changed which...

Experimentation, Illustrated by a Psycho-physical Experiment, Section 8. The Null Hypothesis Edwards, A. W. F. (1998). "Natural Selection and the Sex Ratio: Fisher's...

A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable (i.e. confounding...

controlled experiments comparing replicated human societies as if they were test tubes of bacteria. Instead, one must look at natural experiments in which...

testing Experiment Laboratory Laboratory techniques Design of experiments Scientific control Natural experiment Observational study Field experiment Self-experimentation...

gases, hence the conditions during the last glacial maximum provide a natural experiment for measuring the impact of changes in greenhouse gases on climate...

outside such formal confines include natural and quasi-natural experiments. One can loosely classify economic experiments using the following topics: Markets...

to the analysis of causal relationships." Their work focused on natural experiments, which can offer empirical data in contexts where controlled experimentation...

the experiment as follows: Flip the coin twice. If both comes up heads or tails, end the experiment. Else, flip the coin 4 more times. This experiment has...

In science, randomized experiments are the experiments that allow the greatest reliability and validity of statistical estimates of treatment effects...

study may also be subject to an ecological fallacy, as this was a natural experiment and the two populations being compared may not be comparable. While...

The Miller–Urey experiment, or Miller experiment, was an experiment in chemical synthesis carried out in 1952 that simulated the conditions thought at...

A thought experiment is a hypothetical situation in which a hypothesis, theory, or principle is laid out for the purpose of thinking through its consequences...

parameter estimate from a repeat of the experiment falling within the confidence interval computed from a given experiment. Welch presented an example which...

phenomena and experiments. Methods vary from discipline to discipline, from simple experiments and observations, such as Galileo's experiments, to more complicated...

preliminary step to testing for mean effects, there is an increase in the experiment-wise Type I error rate. Most F-tests arise by considering a decomposition...

are data that are generated in the course of a controlled scientific experiment. Data are analyzed using techniques such as calculation, reasoning, discussion...

they are also applied to other kinds of data. For example, from natural experiments and observational studies, in which case the inference is dependent...