B.Sc. Applied Statistics: Classification of Variables in Health Sciences Quiz
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B.Sc. Applied Statistics: Classification of Variables in Health Sciences Quiz

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@PraiseworthyHammeredDulcimer

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Questions and Answers

Which of the following best describes a quantitative variable?

  • Continuous and non-continuous
  • Between two possible values and naturally ordered
  • Objectively quantifiable and non-ordinal (correct)
  • Non-ordinal and non-objectively quantifiable

    • What is an example of a discrete quantitative variable?

  • Number of deaths (correct)
  • Glucose level in blood
  • Exposure time to UV radiation
  • Seriousness of an illness as mild, moderate, or grievous

    • Which type of variable can be naturally ordered?

  • Continuous
  • Non-ordinal
  • Discrete
  • Ordinal (correct)

    • What characterizes a nominal qualitative variable?

    <p>Non-ordinal and non-objectively quantifiable</p> Signup and view all the answers

    Which variable type includes the categorised BMI (body mass index)?

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

    What distinguishes a continuous quantitative variable from a discrete quantitative variable?

    <p>It can always find other possible values between two possible values</p> Signup and view all the answers

    What is the variable that could be hypothetically related to the outcome, so its variability could (partially) explain or predict the variability of the outcome?

    <p>Exposure</p> Signup and view all the answers

    What is a variable that could be associated with the exposure and also have an effect on the outcome, but is not of primary interest?

    <p>Confounder</p> Signup and view all the answers

    In biostatistics, what name is applied exclusively to continuous explanatory variables?

    <p>Covariate</p> Signup and view all the answers

    In epidemiology, this terminology is usually applied to both qualitative and continuous explanatory variables. What is it?

    <p>Factor</p> Signup and view all the answers

    Which type of variable measures certain characteristics related to health, whose description or modeling is the main aim of the study?

    <p>Response</p> Signup and view all the answers

    What is the variable that could be motivating the study and usually measures a characteristic related to health?

    <p>Response</p> Signup and view all the answers

    What is any potential explanatory variable included in the study, particularly in some fields of biostatistics?

    <p>Covariate</p> Signup and view all the answers

    What is any potential qualitative explanatory variable included in the study, especially in epidemiology?

    <p>Factor</p> Signup and view all the answers

    In some studies, what do they analyze several of at a time, even a high number of them, as is the case of the exposome paradigm?

    <p>Exposure variables</p> Signup and view all the answers

    What is a variable that is typically considered a confounder and is often controlled for in studies to obtain adjusted effects?

    <p>Confounder variable</p> Signup and view all the answers

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