The available values which the numbers can

The available values which the numbers can - type with a...

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The available values which the numbers can, in principle, take; or the "step" type  also varies. Some variables increase only in whole steps. They are referred to as  discrete variables, e.g., family size increases only in whole steps - 1 child, 2 children,  3 children, etc. Continuous variables on the other hand can have any value in  between. In actuality there are an infinite number of values between 1 and 2, e.g.,  weight or height can vary 100, 100.1, 100.01, 100.001, etc.    Each type of variable can therefore be categorized with: 1) type of  measurement scale and, 2) type of step. For example, "discrete interval" or  "continuous ratio." It would not be meaningful to use a continuous step 
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Unformatted text preview: type with a nominal or ordinal scale. Continuous Discrete Ratio Interval Ordinal not meaningful Nominal not meaningful Are we directly measuring the ultimate thing of interest or are we measuring one thing and hoping that it will give us information about another? In this case, we measure the thing directly and simply report that datum (e.g., the number of pecks in an interval. A behavior which can be measured is used to provide information about a construct which cannot be measured directly. The rate of running is thought to tell us how much fear the person has. Fear is thought to be something "more" than simply a behavior such as running away or screaming....
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This note was uploaded on 11/09/2011 for the course PSY PSY2012 taught by Professor Scheff during the Fall '09 term at Broward College.

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The available values which the numbers can - type with a...

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