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  2. Data preparation - Wikipedia

    en.wikipedia.org/wiki/Data_preparation

    Where possible and economic, data should be verified against an authoritative source (e.g. business information is referenced against a D&B database to ensure accuracy). [3] [4] Given the variety of data sources (e.g. databases, business applications) that provide data and formats that data can arrive in, data preparation can be quite involved ...

  3. Panel Study of Income Dynamics - Wikipedia

    en.wikipedia.org/wiki/Panel_Study_of_Income_Dynamics

    No identifying information is distributed to data users and the identity of all respondents is held in confidence. Approximately 3,200 peer-reviewed publications – one every 2.5 days – are based on PSID data published in the fields of economics , sociology , demography , psychology , child development, public health , medicine , education ...

  4. Data analysis - Wikipedia

    en.wikipedia.org/wiki/Data_analysis

    Data collection or data gathering is the process of gathering and measuring information on targeted variables in an established system, which then enables one to answer relevant questions and evaluate outcomes. The data may also be collected from sensors in the environment, including traffic cameras, satellites, recording devices, etc.

  5. 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 ...

  6. Financial analysis - Wikipedia

    en.wikipedia.org/wiki/Financial_analysis

    As a result, all Income Statement items are divided by Sales, and all Balance Sheet items are divided by Total Assets. [4] Another method is comparative analysis. This provides a better way to determine trends. Comparative analysis presents the same information for two or more time periods and is presented side-by-side to allow for easy ...

  7. Economic data - Wikipedia

    en.wikipedia.org/wiki/Economic_data

    Economic data are data describing an actual economy, past or present.These are typically found in time-series form, that is, covering more than one time period (say the monthly unemployment rate for the last five years) or in cross-sectional data in one time period (say for consumption and income levels for sample households).

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