Reliability and Validity

Question 1

Reliability

Answer 1

• consistency
• same trait measured consistently on repeated measures
• emphasized as a preliminary step that should be completed prior to initiating any study of validity
• hitting same area of target

Question 2

Validity

Answer 2

• appropriate, meaningful, and useful test
• does it measure what it says it does?
• hitting target every time

Question 3

Summary of Reliability from Chapter: Shoulder ROM

Answer 3

• intrarater reliability excellent
• interrater reliability: abduction-good to excellent, flexion-good to excellent, extension-poor (position is complicated-difficult to keep constant between raters), IR-fair (isolating movement from subjects is hard), ER-excellent

Question 4

Summary of Reliability from Chapter: Elbow ROM

Answer 4

• intrarater good to excellent

- interrater good to excellent

Question 5

Summary of Reliability from Chapter: Forearm ROM

Answer 5

• intrarater good to excellent

- interrater good to excellent

Question 6

Summary of Reliability from Chapter: Wrist ROM

Answer 6

• intrarater good to excellent

- interrater good to excellent

Question 7

Summary of Reliability from Chapter: Hand ROM

Answer 7

• intrarater good to excellent

- interrater good to excellent