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PSY230M-1-Spring 2025 - CAS - Introduction to Statistical Methods and Experimental Design (PSY230M1202551)

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A researcher calculates χ²(1) = 4.25 with a p-value of 0.039. What should they conclude?
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Which interpretation of the correlation/relationship does this graph show?

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Please give me a real-life example of a correlation and how you might interpret it.

  • Explanatory variable: Number of minutes a child is read to
  • Outcome variable: Income in middle adulthood
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What correlation coefficient does this graph show?

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Which interpretation of the correlation/relationship does this graph show?

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Give an example of a positive linear relationship between two real-life variables and explain how it would be reflected in a correlation coefficient.In your example, please use "how many minutes per week a child spends watching Peppa Pig" as your explanatory variable.

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A psychologist has found a correlation of +.54 between measures of "need for achievement" and "college grade point average". Given this knowledge, you would expect that:

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What correlation coefficient does this graph show?

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If two variables are highly positively correlated, you know that:

*Choose the BEST answer.

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What result (correlation coefficient r) represents the strongest relationship?

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