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  2. Design of experiments - Wikipedia

    en.wikipedia.org/wiki/Design_of_experiments

    The use of a sequence of experiments, where the design of each may depend on the results of previous experiments, including the possible decision to stop experimenting, is within the scope of sequential analysis, a field that was pioneered [12] by Abraham Wald in the context of sequential tests of statistical hypotheses. [13]

  3. 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.

  4. Out-of-order execution - Wikipedia

    en.wikipedia.org/wiki/Out-of-order_execution

    The first machine to use out-of-order execution was the CDC 6600 (1964), designed by James E. Thornton, which uses a scoreboard to avoid conflicts. It permits an instruction to execute if its source operand (read) registers aren't to be written to by any unexecuted earlier instruction (true dependency) and the destination (write) register not be a register used by any unexecuted earlier ...

  5. Research design - Wikipedia

    en.wikipedia.org/wiki/Research_design

    A research design typically outlines the theories and models underlying a project; the research question(s) of a project; a strategy for gathering data and information; and a strategy for producing answers from the data. [1] A strong research design yields valid answers to research questions while weak designs yield unreliable, imprecise or ...

  6. Operant conditioning - Wikipedia

    en.wikipedia.org/wiki/Operant_conditioning

    Example: if a rat in a Skinner box gets food when it presses a lever, its rate of pressing will go up. Pressing the lever was positively reinforced. Pressing the lever was positively reinforced. Negative reinforcement (a.k.a. escape) occurs when a behavior (response) is followed by the removal of an aversive stimulus, thereby increasing the ...

  7. Florida man stabbed ex-girlfriend 70 times ahead of domestic ...

    www.aol.com/florida-man-stabbed-ex-girlfriend...

    A Florida man is accused of stabbing his estranged girlfriend up to 70 times during a fatal break-in - exactly one month after he was nabbed for assaulting the victim and ordered to stay away from ...

  8. Obesity Rates in the U.S. Drop for the First Time in a Decade ...

    www.aol.com/obesity-rates-u-drop-first-204508332...

    The study followed nearly 17 million people, the majority of whom were in the 26-75 age range, and found that after climbing steadily since 2013, rates of obesity in the U.S. fell 0.15% in 2023 ...

  9. Optimal experimental design - Wikipedia

    en.wikipedia.org/wiki/Optimal_experimental_design

    Designs can be optimized when the design-space is constrained, for example, when the mathematical process-space contains factor-settings that are practically infeasible (e.g. due to safety concerns). Minimizing the variance of estimators