A psychologist would like to examine how the rate of presentation affects people’s ability to memorize a list of words.  For one group of participants, the list is presented at the rate of one word every 0.5 second.  The next group gets one word every second.  The third group has one word every 2 second, and the fourth group has one word every 3 seconds.  How many levels of the IV are present in the study?

MATLAB: An Introduction with Applications
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  1. A psychologist would like to examine how the rate of presentation affects people’s ability to memorize a list of words.  For one group of participants, the list is presented at the rate of one word every 0.5 second.  The next group gets one word every second.  The third group has one word every 2 second, and the fourth group has one word every 3 seconds.  How many levels of the IV are present in the study?

     

       

    a)1

     

     

       

    b)2

     

     

       

    c)3

     

     

       

    d)4

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