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Questions and Answers
What is the formula for calculating reliability based on the ratio of true score variance to observed variance?
What is the formula for calculating reliability based on the ratio of true score variance to observed variance?
- R_xx = r_ot^2
- R_xx = 1 - (s_e^2 / s_o^2)
- R_xx = s_t^2 / s_o^2 (correct)
- R_xx = 1 - r_oe^2
What is the formula for calculating reliability based on the relative lack of error variance?
What is the formula for calculating reliability based on the relative lack of error variance?
- R_xx = s_t^2 / s_o^2
- R_xx = r_ot^2
- R_xx = 1 - r_oe^2
- R_xx = 1 - (s_e^2 / s_o^2) (correct)
What is the formula for calculating reliability based on r2 between observed and true scores?
What is the formula for calculating reliability based on r2 between observed and true scores?
- R_xx = r_ot^2 (correct)
- R_xx = 1 - (s_e^2 / s_o^2)
- R_xx = s_t^2 / s_o^2
- R_xx = 1 - r_oe^2
What is the formula for calculating reliability based on a lack of a correlation between observed scores and error scores?
What is the formula for calculating reliability based on a lack of a correlation between observed scores and error scores?
What does r represent?
What does r represent?
What formula represents the ratio of error variance to observed variance?
What formula represents the ratio of error variance to observed variance?
Flashcards
Reliability Formula 1
Reliability Formula 1
R_xx = s_t^2 / s_o^2 calculates reliability from true score variance to observed variance.
Reliability Formula 2
Reliability Formula 2
R_xx = 1 - (s_e^2 / s_o^2) calculates reliability from error variance so it indicates lack of error.
Reliability Formula 3
Reliability Formula 3
R_xx = r_ot^2 indicates reliability based on the squared correlation between observed and true scores.
Reliability Formula 4
Reliability Formula 4
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Reliability Index (r)
Reliability Index (r)
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Error Variance Ratio
Error Variance Ratio
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