Research Methods

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A researcher wants to attain a random sample of young drivers who have received DUIs within the last year. Using the PREP system, he asks all first year students at WLU who have received a DUI to volunteer for the study. Thirty-five students actually admit to having received DUIs. He assigns a number to each of these students and chooses 15 participants using a table of random numbers.

  • Research Methods -

    Indicate which of the following sampling techniques are examples of random sampling. For those that are not examples of random sampling, explain why.

  • Research Methods -

    What do you think?

  • Research Methods -

    I think so, but once again.. the wording is confusing me..

  • Research Methods -

    Didn't the students select themselves?

  • Research Methods -

    well.. 35 students showed up.. but fifteen were only chosen.. which would then be a random sample? right..?

  • Research Methods -

    Only 35 admitted to having a DUI. It's likely that many more had DUI's but didn't admit it.

    Your sample is skewed.

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