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Longitudinal Study Database

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In this summary, Frist, I will provide a narrative of the variables measured from the High School Longitudinal Study database. Secondly, I will give an explanation of the unit analysis. Next, I will give a description and clarify of the levels of measurement for each variable. Finally, I will enlighten readers on how to perceive these variables to be used to answer the question: What might be the implications for social change?
In the High School Longitudinal Study database the variables are measured by a number. Measurement variables could be referred to as quantitative variables or numeric variables. These variables could be nominal, ordinal, interval or ratio variables. In most cases a researcher would be most interested in the dependent variable. Examples of dependent variable are usually weight, height or length. Examples of independent variables are time, age. Things that would cause the dependent variable. …show more content…

Unit of analysis is the group of the key entities that are examined in the study. Examples from the unit of analysis in the High School Longitudinal database are socio-economic status composite, parent’s highest education level and parent’s employment status.
Typically there are four different levels of measurements for variables. These are nominal, ordinal, interval and ratio. Nominal measurement is a numerical value. An example in the High School Longitudinal Study database used are the year’s math teacher has taught high school math. Ordinal measurement are the features that can be categorized. An example of this would be if you’re ranked the highest education of the parents. An ranking example is reflected below chart

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