TravisMathenyUnit6ProjectPS300

# TravisMathenyUnit6ProjectPS300 - Correlational Research...

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Correlational Research 1 Running head: CORRELATIONAL RESEARCH METHOD The Correlational Research Method Applied Travis H Matheny PS300-01 Research Methods 1 Kaplan University Professor Mariselle McKeon Ph.D. September 6. 2010

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Correlational Research 2 The Correlational Research Method Applied The goal of correlational research is to provide analysis of the relationships between two naturally occurring variables and allows researchers to make predictions based on those relationships. This essay will explain the correlational research method, in explaining this method it will be necessary to explain Pearson’s Correlation Coefficient and how non-linear relationships among two variables can affect it, as well as the meaning of a positive, negative and zero correlation, the significance of each one, and how floor and ceiling effects can prevent a significant correlational coefficient from being discovered. This essay will also include the benefits and limitations to using this method, as well as give an example of an actual research study using this method. As mentioned previously researchers use correlational research when they want to assess the relationship between naturally occurring variables, for example naturally occurring variables could be intelligence, height, weight, musical talent, test scores, moral values, preferences, attitudes, as well as personality characteristics and many others (Zechmeister, Zechmeister, Shaughnessy, 2001). Research psychologist and other researchers often use surveys and other methods to measure and determine an individual’s score on any number of variables in order to determine the relationship between variables. Researchers use a correlation coefficient to calculate the strength and direction of the relationship between these variables. The sign whether negative or positive refers to the direction of the correlation and the absolute value refers to the strength of the correlation. The range of the correlational coefficient is -1.0 to 0.0 which is a negative correlation to 0.0 to +1.0 which is a positive correlation and 0.00 would represent a zero
Correlational Research 3 correlation. The closer the value is to either -1.0 or +1.0 the stronger the correlation is between variables. A positive correlation would indicate that as one variable increases the second variable also increases, a negative correlation would indicate that as one variable increases the second variable decreases and a zero correlation would indicate that one variable has no relationship with the second variable (Zechmeister, Zechmeister, Shaughnessy, 2001, p. 113). For example, a psychologist may develop a correlational research study in order to determine the relationship between violent video games and aggression in adolescents. Researchers could measure how much violent video games adolescents play as well as measure

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## This note was uploaded on 07/27/2011 for the course PSYCH 370 taught by Professor Lang during the Spring '11 term at Kaplan University.

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TravisMathenyUnit6ProjectPS300 - Correlational Research...

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