enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Formula for change - Wikipedia

    en.wikipedia.org/wiki/Formula_for_change

    The formula for change (or "the change formula") provides a model to assess the relative strengths affecting the likely success of organisational change programs. The formula was created by David Gleicher while he was working at management consultants Arthur D. Little in the early 1960s, [1] refined by Kathie Dannemiller in the 1980s, [2] and further developed by Steve Cady.

  3. Rule of three (statistics) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(statistics)

    The rule can then be derived [2] either from the Poisson approximation to the binomial distribution, or from the formula (1−p) n for the probability of zero events in the binomial distribution. In the latter case, the edge of the confidence interval is given by Pr( X = 0) = 0.05 and hence (1− p ) n = .05 so n ln (1– p ) = ln .05 ≈ −2.996.

  4. Factor analysis - Wikipedia

    en.wikipedia.org/wiki/Factor_analysis

    Higher-order factor analysis is a statistical method consisting of repeating steps factor analysis – oblique rotation – factor analysis of rotated factors. Its merit is to enable the researcher to see the hierarchical structure of studied phenomena.

  5. Exploratory factor analysis - Wikipedia

    en.wikipedia.org/wiki/Exploratory_factor_analysis

    Factor rotation is a commonly employed step in EFA, used to aide interpretation of factor matrixes. [35] [36] [37] For any solution with two or more factors there are an infinite number of orientations of the factors that will explain the data equally well. Because there is no unique solution, a researcher must select a single solution from the ...

  6. Heckman correction - Wikipedia

    en.wikipedia.org/wiki/Heckman_correction

    The Heckman correction is a two-step M-estimator where the covariance matrix generated by OLS estimation of the second stage is inconsistent. [7] Correct standard errors and other statistics can be generated from an asymptotic approximation or by resampling, such as through a bootstrap. [8]

  7. Fractional factorial design - Wikipedia

    en.wikipedia.org/wiki/Fractional_factorial_design

    Dropping B results in a full factorial 2 3 design for the factors A, C, and D. Performing the anova using factors A, C, and D, and the interaction terms A:C and A:D, gives the results shown in the table, which are very similar to the results for the full factorial experiment experiment, but have the advantage of requiring only a half-fraction 8 ...

  8. Box–Behnken design - Wikipedia

    en.wikipedia.org/wiki/Box–Behnken_design

    The design should be sufficient to fit a quadratic model, that is, one containing squared terms, products of two factors, linear terms and an intercept. The ratio of the number of experimental points to the number of coefficients in the quadratic model should be reasonable (in fact, their designs kept in the range of 1.5 to 2.6).

  9. Multiple factor analysis - Wikipedia

    en.wikipedia.org/wiki/Multiple_factor_analysis

    The two groups of variables have in common the size effect (first axis) and differ according to axis 2 since this axis is specific to group 1 (he opposes the variables A and B). 7. Representations of factors of separate analyses of the different groups. These factors are represented as supplementary quantitative variables (correlation circle ...