RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
THE SCIENTIFIC METHOD AND DESCRIPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Correlational
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Experimental
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Case Study
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Survey
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Observational
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Detailed explanation-1: -Notice that when you look at the scatter plot the points seem to form a line going up from left to right. This means that there is a positive correlation between the-coordinates and the-coordinates. The answer is that the scatter plot shows a positive correlation.
Detailed explanation-2: -Understanding the Correlation Coefficient The values of-1 (for a negative correlation) and 1 (for a positive one) describe perfect fits in which all data points align in a straight line, indicating that the variables are perfectly correlated.
Detailed explanation-3: -If |r| = 1 exactly, the two variables are perfectly correlated! Temperature in Celsius and Fahrenheit are perfectly correlated. Formal hypothesis testing can be applied to r to determine how significant a result is.
Detailed explanation-4: -The most useful graph for displaying the relationship between two quantitative variables is a scatterplot.