Class Notes (835,729)
Canada (509,353)
PEDS109 (14)
John Dunn (14)

Sept 7 - Intro To Measurement and Evaluation.doc

3 Pages
Unlock Document

Physical Education and Sport
John Dunn

Sept 5 – Intro to Measurement and Evaluation Why Do We Need Data? • Data (info, measurements or observations) are required to make an “informed decision” • Variable: a variable refers to the “phenomenon” or “attribute” or “thing of interest” that we are measuring • a variable is a characteristic or condition that changes or has different values for different individuals • in non experimental environments, we don't manipulate the variable • as researchers, we need to find ways to acquire data to make accurate decisions (ex. Skiers wanna know what the temperature and wax their skis accordingly) Gathering Info/Data • Obviously, some tests are better than others! • A test is the procedure or protocol that we employ to get the data which will enable us to make informed decisions • Different tests provide us with different qualities of data • We have to determine which test is the best for acquiring the data we need • We want to obtain data that truly represent the construct of interest, Ex. We need data that allows us to make Valid Inferences • We shouldn’t talk about the validity of tests; talk about the validity of inferences we make from test scores • Validity is a fancy word for the word truthful The Nature of Measurement And Evaluation • Measurement: The act of assessing • Measurement is complete when a score (ex. Number) is assigned to the object/event (ex. Variable) being assessed • Measurement is the act of assessing and assigning a numerical value to a variable • Quantitative Data: data that is based on numbers • Qualitative Data: measurement applies/relates to the properties of the objects (ex. Variables that are under investigation, rather than to the objects themselves) (ex. Interviews) To measure an “attribute/variable/construct” we need a test or measuring
More Less

Related notes for PEDS109

Log In


Join OneClass

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

Sign up

Join to view


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.