Twin studies track how similar identical and fraternal twins are on various …
Twin studies track how similar identical and fraternal twins are on various characteristics, even if they don't grow up together. Correlation lets researchers put a number on it. Scroll down the page to find comprehensive student and teacher guides to accompany the video. [10:50]
Students explore the relationship between two quantitative variables in bivariate data using …
Students explore the relationship between two quantitative variables in bivariate data using various x-y plots. They compare the relationships for several categories on the same plot. Students calculate the correlation coefficient to measure the strength and direction of the linear relationship that might exist between two variables.
An interactive program where students will explore regression lines. Students will be …
An interactive program where students will explore regression lines. Students will be introduced to the correlation coefficient and come to understand what it represents through the given exploration. Requires Java.
Create your own scatter plot or use real-world data and try to …
Create your own scatter plot or use real-world data and try to fit a line to it. Explore how individual data points affect the correlation coefficient and best-fit line.
Psychology is designed to meet scope and sequence requirements for the single-semester …
Psychology is designed to meet scope and sequence requirements for the single-semester introduction to psychology course. The book offers a comprehensive treatment of core concepts, grounded in both classic studies and current and emerging research. The text also includes coverage of the DSM-5 in examinations of psychological disorders. Psychology incorporates discussions that reflect the diversity within the discipline, as well as the diversity of cultures and communities across the globe.Senior Contributing AuthorsRose M. Spielman, Formerly of Quinnipiac UniversityContributing AuthorsKathryn Dumper, Bainbridge State CollegeWilliam Jenkins, Mercer UniversityArlene Lacombe, Saint Joseph's UniversityMarilyn Lovett, Livingstone CollegeMarion Perlmutter, University of Michigan
By the end of this section, you will be able to: Explain …
By the end of this section, you will be able to:
Explain what a correlation coefficient tells us about the relationship between variables Recognize that correlation does not indicate a cause-and-effect relationship between variables Discuss our tendency to look for relationships between variables that do not really exist Explain random sampling and assignment of participants into experimental and control groups Discuss how experimenter or participant bias could affect the results of an experiment Identify independent and dependent variables
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