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  2. Panel data - Wikipedia

    en.wikipedia.org/wiki/Panel_data

    Cross-panel data (CPD) is an innovative yet underappreciated source of information in the mathematical and statistical sciences. CPD stands out from other research methods because it vividly illustrates how independent and dependent variables may shift between countries. This panel data collection allows researchers to examine the connection ...

  3. Cross-sectional data - Wikipedia

    en.wikipedia.org/wiki/Cross-sectional_data

    Cross-sectional data differs from time series data, in which the same small-scale or aggregate entity is observed at various points in time. Another type of data, panel data (or longitudinal data), combines both cross-sectional and time series data aspects and looks at how the subjects (firms, individuals, etc.) change over a time series. Panel ...

  4. Panel analysis - Wikipedia

    en.wikipedia.org/wiki/Panel_analysis

    Panel (data) analysis is a statistical method, widely used in social science, epidemiology, and econometrics to analyze two-dimensional (typically cross sectional and longitudinal) panel data. [1] The data are usually collected over time and over the same individuals and then a regression is run over these two dimensions.

  5. Pooled analysis - Wikipedia

    en.wikipedia.org/wiki/Pooled_analysis

    A pooled analysis is a statistical technique for combining the results of multiple epidemiological studies. It is one of three types of literature reviews frequently used in epidemiology, along with meta-analysis and traditional narrative reviews .

  6. First-difference estimator - Wikipedia

    en.wikipedia.org/wiki/First-Difference_Estimator

    The estimator requires data on a dependent variable, , and independent variables, , for a set of individual units =, …, and time periods =, …,. The estimator is obtained by running a pooled ordinary least squares (OLS) estimation for a regression of Δ y i t {\displaystyle \Delta y_{it}} on Δ x i t {\displaystyle \Delta x_{it}} .

  7. Longitudinal study - Wikipedia

    en.wikipedia.org/wiki/Longitudinal_study

    The NILS is designed for statistics and research purposes only and is managed by the Northern Ireland Statistics and Research Agency under Census legislation. The data are de-identified at the point of use; access is only from within a strictly controlled 'secure environment' and governed by protocols and procedures to ensure data confidentiality.

  8. Partial likelihood methods for panel data - Wikipedia

    en.wikipedia.org/wiki/Partial_likelihood_methods...

    Partial (pooled) likelihood estimation for panel data is a quasi-maximum likelihood method for panel analysis that assumes that density of given is correctly specified for each time period but it allows for misspecification in the conditional density of = (, …,) given = (, …,).

  9. Cohort study - Wikipedia

    en.wikipedia.org/wiki/Cohort_study

    It is a type of panel study where the individuals in the panel share a common characteristic. Cohort studies represent one of the fundamental designs of epidemiology which are used in research in the fields of medicine , pharmacy , nursing , psychology , social science , and in any field reliant on 'difficult to reach' answers that are based on ...