Textbook Notes (368,776)
Canada (162,160)
York University (12,867)
Psychology (3,584)
PSYC 2030 (144)
Chapter 4

Chapter 4 - Reliability and Validity.docx

1 Page
89 Views
Unlock Document

Department
Psychology
Course
PSYC 2030
Professor
Rebecca Jubis
Semester
Winter

Description
Chapter 4: Reliability and Validity Reliability  In general, a measure of behaviour is said to be reliable if its results are repeatable when the behaviours are re-measured – reliability is essential because without it there is no way of determining what a score on a particular measure means, for example, in reaction time you’re trying to determine how fast someone is, but if the reaction times vary wildly, there is no way to answer that question, it should remain consistent over time.  A behavioural measure’s reliability is a direct function of the amount of measurement error present – if there is a great deal of error, reliability is low, and vise versa. Validity  A behavioural measure is said to be valid if it measures what it has been designed to measure, for example, a test of intelligence should measure intelligence and not something else.  Content validity is concerned with whether or not the actual content of the items on a test “makes sense” in terms of the construct being measured.  Face validity is not actually a “valid” form of validity at all – it is concerned with whether the measure seems to be
More Less

Related notes for PSYC 2030

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit