Types of Data and Data Sources
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Questions and Answers

What type of data is described as non-numerical and describes characteristics or attributes?

  • Secondary Data
  • Qualitative Data (correct)
  • Primary Data
  • Quantitative Data
  • What is the term for data collected directly from the source?

  • Qualitative Data
  • Quantitative Data
  • Secondary Data
  • Primary Data (correct)
  • What is the term for data that is thorough and includes all necessary information?

  • Completeness (correct)
  • Relevance
  • Consistency
  • Accuracy
  • What type of data has a natural order or ranking?

    <p>Ordinal Data</p> Signup and view all the answers

    What is the process of identifying and correcting errors in data?

    <p>Data Cleaning</p> Signup and view all the answers

    What is a central repository that stores data from various sources in a single location?

    <p>Data Warehouse</p> Signup and view all the answers

    What is the process of discovering patterns and relationships in large datasets?

    <p>Data Mining</p> Signup and view all the answers

    What is the process of accessing and extracting specific data from a database or storage system?

    <p>Data Retrieval</p> Signup and view all the answers

    Study Notes

    Types of Data

    • Qualitative Data: Non-numerical data that describes characteristics or attributes, such as text, images, and videos.
    • Quantitative Data: Numerical data that can be measured and analyzed, such as numbers, percentages, and statistics.

    Data Sources

    • Primary Data: Collected directly from the source, such as through surveys, experiments, or observations.
    • Secondary Data: Collected from existing sources, such as books, articles, or online databases.

    Data Characteristics

    • Accuracy: The degree to which data is correct and free from errors.
    • Completeness: The degree to which data is thorough and includes all necessary information.
    • Consistency: The degree to which data is uniform and follows a standard format.
    • Relevance: The degree to which data is applicable and useful for a particular purpose.

    Data Levels of Measurement

    • Nominal Data: Categorical data with no inherent order or scale, such as names or categories.
    • Ordinal Data: Categorical data with a natural order or ranking, such as grades or rankings.
    • Interval Data: Numerical data with a fixed unit of measurement, such as temperatures or dates.
    • Ratio Data: Numerical data with a fixed zero point and unit of measurement, such as heights or weights.

    Data Processing

    • Data Cleaning: The process of identifying and correcting errors, inconsistencies, and missing values.
    • Data Transformation: The process of converting data into a more suitable format for analysis.
    • Data Reduction: The process of simplifying data to reduce its complexity and improve analysis.

    Data Storage and Retrieval

    • Data Warehouse: A central repository that stores data from various sources in a single location.
    • Data Mining: The process of discovering patterns and relationships in large datasets.
    • Data Retrieval: The process of accessing and extracting specific data from a database or storage system.

    Data Classification

    • Qualitative Data: Describes characteristics or attributes, such as text, images, and videos, which are non-numerical.
    • Quantitative Data: Consists of numerical data that can be measured and analyzed, such as numbers, percentages, and statistics.

    Data Sources

    • Primary Data: Collected directly from the source through methods like surveys, experiments, or observations.
    • Secondary Data: Collected from existing sources, such as books, articles, or online databases.

    Data Quality

    • Accuracy: The degree to which data is correct and free from errors.
    • Completeness: The degree to which data is thorough and includes all necessary information.
    • Consistency: The degree to which data is uniform and follows a standard format.
    • Relevance: The degree to which data is applicable and useful for a particular purpose.

    Data Levels of Measurement

    • Nominal Data: Categorical data with no inherent order or scale, such as names or categories.
    • Ordinal Data: Categorical data with a natural order or ranking, such as grades or rankings.
    • Interval Data: Numerical data with a fixed unit of measurement, such as temperatures or dates.
    • Ratio Data: Numerical data with a fixed zero point and unit of measurement, such as heights or weights.

    Data Manipulation

    • Data Cleaning: Identifying and correcting errors, inconsistencies, and missing values in data.
    • Data Transformation: Converting data into a more suitable format for analysis.
    • Data Reduction: Simplifying data to reduce its complexity and improve analysis.

    Data Management

    • Data Warehouse: A central repository that stores data from various sources in a single location.
    • Data Mining: Discovering patterns and relationships in large datasets.
    • Data Retrieval: Accessing and extracting specific data from a database or storage system.

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    Quiz Team

    Description

    Learn about the differences between qualitative and quantitative data, and primary and secondary data sources in research.

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