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  2. Treatment and control groups - Wikipedia

    en.wikipedia.org/wiki/Treatment_and_control_groups

    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 ...

  3. Local average treatment effect - Wikipedia

    en.wikipedia.org/wiki/Local_average_treatment_effect

    In an experimental population, several aspects can be observed: the treated potential outcomes of the always-takers (those who are treated in the control group); the untreated potential outcomes of the never-takers (those who remain untreated in the treatment group); the treated potential outcomes of the always-takers and compliers (those who ...

  4. Eye movement desensitization and reprocessing - Wikipedia

    en.wikipedia.org/wiki/Eye_movement...

    Many randomized trials of EMDR have been criticized for poor control groups, [28] small sample sizes, [29] [4] and other methodological flaws. [ 4 ] [ 24 ] [ 30 ] It has been called a purple hat therapy because any effectiveness is provided by the underlying therapy (or the standard treatment), not from EMDR's distinctive features.

  5. Placebo-controlled study - Wikipedia

    en.wikipedia.org/wiki/Placebo-controlled_study

    A study whose control is a previously tested treatment, rather than no treatment, is called a positive-control study, because its control is of the positive type. Government regulatory agencies approve new drugs only after tests establish not only that patients respond to them, but also that their effect is greater than that of a placebo (by ...

  6. Propensity score matching - Wikipedia

    en.wikipedia.org/wiki/Propensity_score_matching

    PSM attempts to control for these biases by making the groups receiving treatment and not-treatment comparable with respect to the control variables. PSM employs a predicted probability of group membership—e.g., treatment versus control group—based on observed predictors, usually obtained from logistic regression to create a counterfactual ...

  7. Clinical behavior analysis - Wikipedia

    en.wikipedia.org/wiki/Clinical_behavior_analysis

    Clinical behavior analysis (CBA; also called clinical behaviour analysis or third-generation behavior therapy) is the clinical application of behavior analysis (ABA). [1] CBA represents a movement in behavior therapy away from methodological behaviorism and back toward radical behaviorism and the use of functional analytic models of verbal behavior—particularly, relational frame theory (RFT).

  8. Average treatment effect - Wikipedia

    en.wikipedia.org/wiki/Average_treatment_effect

    The ATE, in this case, is the difference in expected values (means) of the treatment and control groups' length of unemployment. A positive ATE, in this example, would suggest that the job policy increased the length of unemployment. A negative ATE would suggest that the job policy decreased the length of unemployment.

  9. 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.