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  2. Research question - Wikipedia

    en.wikipedia.org/wiki/Research_question

    The research question serves two purposes It determines where and what kind of research the writer will be looking for. [43] It identifies the specific objectives the study or paper will address. Therefore, the writer must first identify the type of study (qualitative, quantitative, or mixed) before the research question is developed.

  3. Closed-ended question - Wikipedia

    en.wikipedia.org/wiki/Closed-ended_question

    It is often argued that open-ended questions (i.e. questions that elicit more than a yes/no answers) are preferable because they open up discussion and enquiry. Peter Worley argues that this is a false assumption. This is based on Worley's central arguments that there are two different kinds of open and closed questions: grammatical and conceptual.

  4. Display and referential questions - Wikipedia

    en.wikipedia.org/wiki/Display_and_referential...

    Referential questions are known to elicit higher-order responses resulting from critical thinking. [9] Thus, there is typically a longer wait-time between turns where referential questions are involved. However, responses to referential questions do not always take the form of complex utterances. The following example is a case in point:

  5. Scientific method - Wikipedia

    en.wikipedia.org/wiki/Scientific_method

    The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...

  6. Boy or girl paradox - Wikipedia

    en.wikipedia.org/wiki/Boy_or_Girl_paradox

    The Boy or Girl paradox surrounds a set of questions in probability theory, which are also known as The Two Child Problem, [1] Mr. Smith's Children [2] and the Mrs. Smith Problem. The initial formulation of the question dates back to at least 1959, when Martin Gardner featured it in his October 1959 " Mathematical Games column " in Scientific ...

  7. Decision tree learning - Wikipedia

    en.wikipedia.org/wiki/Decision_tree_learning

    The resulting number gives an estimate on how many positive examples the feature could correctly identify within the data, with higher numbers meaning that the feature could correctly classify more positive samples. Below is an example of how to use the metric when the full confusion matrix of a certain feature is given: Feature A Confusion Matrix

  8. Null hypothesis - Wikipedia

    en.wikipedia.org/wiki/Null_hypothesis

    Consider the following example. Given the test scores of two random samples, one of men and one of women, does one group score better than the other? A possible null hypothesis is that the mean male score is the same as the mean female score: H 0: μ 1 = μ 2. where

  9. The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

    Boolos provides the following clarifications: [1] a single god may be asked more than one question, questions are permitted to depend on the answers to earlier questions, and the nature of Random's response should be thought of as depending on the flip of a fair coin hidden in his brain: if the coin comes down heads, he speaks truly; if tails ...