LCQ LCQ Scoring and Calculation 1 — Questions and Answers
Question 1: How many domains does the LCQ use to calculate its total score?
- Two domains
- Three domains (Correct answer)
- Four domains
- Five domains
Correct answer: Three domains
The LCQ calculates scores across three domains: physical, psychological, and social.
Question 2: What is the minimum possible score on the LCQ total scale?
- 3 (Correct answer)
- 5
- 7
- 10
Correct answer: 3
The minimum total LCQ score is 3, reflecting the worst possible quality of life impact across all three domains.
Question 3: What is the maximum possible score on the LCQ total scale?
- 19
- 21 (Correct answer)
- 25
- 27
Correct answer: 21
The maximum LCQ total score is 21, indicating no cough-related quality of life impairment.
Question 4: How is each individual domain score on the LCQ calculated?
- Sum of all item responses divided by number of items (Correct answer)
- Sum of raw item scores only
- Weighted sum based on item severity
- Binary scoring per item
Correct answer: Sum of all item responses divided by number of items
Each domain score is the mean (average) of its constituent item responses, giving a score from 1 to 7.
Question 5: On the LCQ Likert scale, what does a response of '7' indicate?
- Severe impairment always
- Never experiencing that symptom/impact (Correct answer)
- Moderate impairment sometimes
- Complete inability to function
Correct answer: Never experiencing that symptom/impact
A response of 7 on the LCQ Likert scale indicates the patient never experiences that particular cough-related impairment.
Question 6: A minimally important clinical difference (MCID) for the LCQ total score is generally considered to be approximately:
- 0.5 points
- 1.3 points (Correct answer)
- 3.0 points
- 5.0 points
Correct answer: 1.3 points
An MCID of approximately 1.3 points on the LCQ total score is considered clinically meaningful for detecting treatment response.
LCQ LCQ Scoring and Calculation 1
How many domains does the LCQ use to calculate its total score?