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  2. Ex post facto law - Wikipedia

    en.wikipedia.org/wiki/Ex_post_facto_law

    An ex post facto law [1] is a law that retroactively changes the legal consequences or status of actions that were committed, or relationships that existed, ...

  3. Research design - Wikipedia

    en.wikipedia.org/wiki/Research_design

    There are many ways to classify research designs. Nonetheless, the list below offers a number of useful distinctions between possible research designs. A research design is an arrangement of conditions or collection. [5] Descriptive (e.g., case-study, naturalistic observation, survey) Correlational (e.g., case-control study, observational study)

  4. Multiple baseline design - Wikipedia

    en.wikipedia.org/wiki/Multiple_Baseline_Design

    Ex post facto recruitment methods are not considered true experiments, due to the limits of experimental control or randomized control that the experimenter has over the trait. This is because a control group may necessarily be selected from a discrete separate population. This research design is thus considered a quasi-experimental design.

  5. Regression discontinuity design - Wikipedia

    en.wikipedia.org/.../Regression_discontinuity_design

    In statistics, econometrics, political science, epidemiology, and related disciplines, a regression discontinuity design (RDD) is a quasi-experimental pretest–posttest design that aims to determine the causal effects of interventions by assigning a cutoff or threshold above or below which an intervention is assigned.

  6. Retrospective cohort study - Wikipedia

    en.wikipedia.org/wiki/Retrospective_cohort_study

    A retrospective cohort study, also called a historic cohort study, is a longitudinal cohort study used in medical and psychological research. A cohort of individuals that share a common exposure factor is compared with another group of equivalent individuals not exposed to that factor, to determine the factor's influence on the incidence of a ...

  7. Calder v. Bull - Wikipedia

    en.wikipedia.org/wiki/Calder_v._Bull

    In my opinion, the true distinction is between ex post facto laws, and retrospective laws. Every ex post facto law must necessarily be retrospective; but every retrospective law is not an ex post facto law: The former, only, are prohibited. Every law that takes away, or impairs, rights vested, agreeably to existing laws, is retrospective, and ...

  8. Category:Ex post facto law - Wikipedia

    en.wikipedia.org/wiki/Category:Ex_post_facto_law

    Ex post facto case law (1 C, 7 P) N. Nuremberg trials (3 C, 66 P) Pages in category "Ex post facto law" The following 11 pages are in this category, out of 11 total.

  9. Ex post facto - Wikipedia

    en.wikipedia.org/?title=Ex_post_facto&redirect=no

    This page was last edited on 25 September 2016, at 18:35 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.