Class Notes (834,037)
Canada (508,290)
Psychology (7,771)
PSYB01H3 (260)
Anna Nagy (133)
Lecture

june 14 lecture

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Department
Psychology
Course
PSYB01H3
Professor
Anna Nagy
Semester
Summer

Description
Next week midtermwriting in AA112held during class timefirst 5 chaptersthis lecture includedMEASUREMENTVariablesOperational DefinitionsReliability the proportion of truth in a measure reliability is looked at over a large number of subjectsleads to a variability in scoresnot looking at mean scores but how variance differs in scoresmultiple choice questions on reliability not short answerthe proportion of true score in each measuremeasurement error varies each timetrue score we dont know is the same especially over a short period of timeknow term true scorevariance of true score T Variance of measure Xcan we calculate actual true reliability of a measure No cant calculate variance of true scores because wont know what they arecan estimate itcan assume our measurement scores share a true scoreit is the measurement error that differsmeasurement scores are related
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