Data Accuracy & Agreement

Question 1

What are the key factors in visual data analysis?

Answer 1

Trend, Level, Variability

Trend refers to the direction of data, Level indicates the average position on the Y-axis, and Variability represents fluctuations in data.

Question 2

What is the purpose of visual data analysis?

Answer 2

To assess intervention impact without statistical tests.

Question 3

What does Inter-Observer Agreement (IOA) measure?

Answer 3

The extent to which two observers agree in their measurements.

Question 4

Why is Inter-Observer Agreement important?

Answer 4

It ensures data quality by checking the agreement between observers.

Question 5

What is the acceptable range for agreement in IOA?

Answer 5

80–90%.

Question 6

How is Inter-Observer Agreement calculated for continuous data?

Answer 6

As % of total agreement.

Question 7

How is Inter-Observer Agreement calculated for discontinuous data?

Answer 7

As % of overall agreement.

Question 8

What is Total Agreement used for in IOA?

Answer 8

Used for continuous data; calculated by comparing totals.

Question 9

What is Overall Agreement used for in IOA?

Answer 9

Used for discontinuous data; based on the proportion of interval matches.