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  2. Quasi-experiment - Wikipedia

    en.wikipedia.org/wiki/Quasi-experiment

    A quasi-experiment is an empirical study used to estimate the causal impact of an intervention. Quasi-experiments shares similarities with experiments or randomized controlled trials, but specifically lack random assignment to treatment or control. Instead, quasi-experimental designs typically allow assignment to treatment condition to proceed ...

  3. Quasi-empirical method - Wikipedia

    en.wikipedia.org/wiki/Quasi-empirical_method

    Quasi-empirical method usually refers to a means of choosing problems to focus on (or ignore), selecting prior work on which to build an argument or proof, notations for informal claims, peer review and acceptance, and incentives to discover, ignore, or correct errors.

  4. Design of experiments - Wikipedia

    en.wikipedia.org/wiki/Design_of_experiments

    This example of design experiments is attributed to Harold Hotelling, building on examples from Frank Yates. [21] [22] [14] The experiments designed in this example involve combinatorial designs. [23] Weights of eight objects are measured using a pan balance and set of standard weights. Each weighing measures the weight difference between ...

  5. Repeated measures design - Wikipedia

    en.wikipedia.org/wiki/Repeated_measures_design

    For example, experiments in which each condition takes only a few minutes, whereas the training to complete the tasks take as much, if not more time. Longitudinal analysis—Repeated measure designs allow researchers to monitor how participants change over time, both long- and short-term situations.

  6. Crossover study - Wikipedia

    en.wikipedia.org/wiki/Crossover_study

    In medicine, a crossover study or crossover trial is a longitudinal study in which subjects receive a sequence of different treatments (or exposures). While crossover studies can be observational studies, many important crossover studies are controlled experiments, which are discussed in this article.

  7. List of psychological research methods - Wikipedia

    en.wikipedia.org/wiki/List_of_psychological...

    Quantitative psychological research findings result from mathematical modeling and statistical estimation or statistical inference. The two types of research differ in the methods employed, rather than the topics they focus on. There are three main types of psychological research: Correlational research; Descriptive research; Experimental research

  8. Social experiment - Wikipedia

    en.wikipedia.org/wiki/Social_experiment

    A social experiment is a method of psychological or sociological research that observes people's reactions to certain situations or events. The experiment depends on a particular social approach where the main source of information is the participants' point of view and knowledge.

  9. Replication (statistics) - Wikipedia

    en.wikipedia.org/wiki/Replication_(statistics)

    Example of direct replication and conceptual replication There are two main types of replication in statistics. First, there is a type called “exact replication” (also called "direct replication"), which involves repeating the study as closely as possible to the original to see whether the original results can be precisely reproduced. [ 3 ]

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