Compare and contrast two of the following five research methods in psychology described in your text or on the internet. These research methods include: Case study, Naturalistic observation, Correlation research, Survey research, and Experimental method. Include in your discussion the research techniques, reliability and validity, generalization, strengths and weaknesses of your choices.
Use attachment and the Internet for research.
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Co relational Research: Correlation is a simple statistics used to identify the amount of variation in one variable as a function of the variation, presence ort absence of another.
Research Techniques: In a research design where relationship between an Independent variable and dependent variable/s is to be evaluated, co relational research method is used and appropriate statistical analysis tests are done. The mathematical formula for co relational research is an r with a value from -1.0 to 1.0
Reliability: Correlation method has different levels of reliability and strength. .30-.65, .68-75. and .85-.95 and above are roughly low medium and strong correlation ranges.
Validity: Validity of co relational research design is good too, if the experimental study is done under the same condition that it was done before, otherwise there will be a threat to validity in the …
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