Descriptive statistics

Descriptive statistics

1. Descriptive statistics is the branch of Mathematics that collects, presents and characterizes a set of data.

   • stages
     • harvest
       • the researcher is placed in contact with the study elements, specifies variables and identifies the data source
         • what is measured?
           • The fluctuations of the variables contained in the hypothesis or research question
         • As measured?
           • The visible values ​​presented to the variables, values ​​that have been previously linked with numerical items, are recorded
         • What is it measured with?
           • With some measurement instrument available: questionnaires, scale to measure attitudes, standardized tests, observation, content analysis, others
         • How is the instrument applied?
           • It can be self-applied, by interviews or by observation
         • How is the data prepared for analysis?
           • The responses obtained, previously coded, are transferred to a data matrix and prepared for statistical analysis.
       • can be done in two ways
         • Documentary research technique
         • Field work technique
       • includes four aspects
         • material distribution
         • collection itself
         • control of the number of forms collected
         • control over the quality of the information collected
     • organization
       • data presentation
       • prosecution
       • tabulation
       • review and correction of information
     • analysis
       • Statistical analysis and evaluation of the results
       • procedures used
       • Title
       • issue
     • presentation of the results
       • It is an accurate report containing
         • graph
         • tabulation
         • approach
         • research objective
     • planning
       • Problem Statement
       • determine goals
       • working hypothesis
       • Research unit
       • procedures
       • material
       • purpose
       • source of information
       • the cost and financing

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