How are measures of central tendency and variability used to evaluate data?

Order Instructions

How are measures of central tendency and variability used to evaluate data?

What statistics are used to describe relationships and strength of association between variables?

Explain scales of measurement. Why is it important to understand the scale of measurement for your dependent variable?

Give an example of a dependent variable with a nominal scale, an interval scale, and a ratio scale.

How is probability used to determine if differences in study groups are statistically significant? What does the p value tell us about the results of a study?

What is statistical power? How does it relate to the interpretation of the results of a study?

Imagine a case where an experimenter is examining the relationship between age and self-disclosure. A large sample of participants who are 25 to 35 years old and participants who are 65 to 75 years old are compared. Significant differences are found, with younger participants disclosing much more than older participants. The researcher reports an effect size of .34. What does this result mean?

Cozby, P. (2019). Methods in behavioral research, 14e (14th ed.). McGraw-Hill Higher Education.

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