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  2. Data structure - Wikipedia

    en.wikipedia.org/wiki/Data_structure

    A data structure known as a hash table.. In computer science, a data structure is a data organization and storage format that is usually chosen for efficient access to data. [1] [2] [3] More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, [4] i.e., it is an algebraic structure about data.

  3. Instrumental and value rationality - Wikipedia

    en.wikipedia.org/wiki/Instrumental_and_value...

    The rationalist supposes that knowledge is the direct intuition of essences [value rational ends]; the empiricist supposes that it is a summary of antecedently given sense data [instrumental means]. [7]: xii Rationalists are prone to favor Weber's value rationality.

  4. Data analysis - Wikipedia

    en.wikipedia.org/wiki/Data_analysis

    [124] [125] It is especially important to exactly determine the structure of the sample (and specifically the size of the subgroups) when subgroup analyses will be performed during the main analysis phase. [126] The characteristics of the data sample can be assessed by looking at: Basic statistics of important variables; Scatter plots

  5. Design rationale - Wikipedia

    en.wikipedia.org/wiki/Design_rationale

    A design rationale is the explicit listing of decisions made during a design process, and the reasons why those decisions were made. [2] Its primary goal is to support designers by providing a means to record and communicate the argumentation and reasoning behind the design process. [3]

  6. Variable and attribute (research) - Wikipedia

    en.wikipedia.org/wiki/Variable_and_attribute...

    How high, or how low, is determined by the value of the attribute (and in fact, an attribute could be just the word "low" or "high"). [1] (For example see: Binary option) While an attribute is often intuitive, the variable is the operationalized way in which the attribute is represented for further data processing.

  7. Quantitative research - Wikipedia

    en.wikipedia.org/wiki/Quantitative_research

    Quantitative research using statistical methods starts with the collection of data, based on the hypothesis or theory. Usually a big sample of data is collected – this would require verification, validation and recording before the analysis can take place. Software packages such as SPSS and R are typically used for this purpose. Causal ...

  8. Exploratory factor analysis - Wikipedia

    en.wikipedia.org/wiki/Exploratory_factor_analysis

    This statistic should be used with a large sample size and normally distributed data. There are some drawbacks to the likelihood ratio test. First, when there is a large sample size, even small discrepancies between the model and the data result in model rejection.

  9. Structural equation modeling - Wikipedia

    en.wikipedia.org/wiki/Structural_equation_modeling

    the remaining consistency, or inconsistency, between the model and data. (The estimation process minimizes the differences between the model and data but important and informative differences may remain.) Research claiming to test or "investigate" a theory requires attending to beyond-chance model-data inconsistency.

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