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unit 1

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1/18

Terms in this set (18)

  • sample

    A smaller group taken from the population

  • census

    a study that includes the whole population

  • Statistical significance

    too low/ rare to be from a random

  • practical significance

    large enough to be worth taking action

  • qualitative data

    observations that include numbers

  • quantitative data

    observations that include measurements

  • discrete data

    countable limited to the number of reasoposes (whole numbers)

  • continuous data

    unlimited number possible responsible ex weight

  • replication

    used to draw conclusions about a population

    several subjects must be in each group

  • Blinding

    subject and or researcher does not know the treatment assigned

  • randomization

    subjects are randomly assigned to groups

  • completely randomized

    uses randomness to determine who gets the treatment and who gets the placebo

  • Randomized Block Design

    a block is a homogeneous group of subjects that are similar but the blocks differ in ways that might affect the outcome

  • Matched pairs design

    uses subjects in matched pairs by similar characteristics

  • systematic sample

    selects every ths for the sample

  • stratified sample

    subdivide then randomly select

  • cluster

    parts the population in clusters then include ALL members

  • convenience sample

    observe subjects that are available