IOA

Question 1

IOA

Answer 1

Interobserver agreement
Benefits:
a. certain level of IOA can be used as a basis for new
observers
b. can detect observer drift
c. increases confidence that definition was clear
d. consistently high levels of IOA increase confidence
between observers
e. allows for believability that data is trustworthy

Question 2

IOA requisites

Answer 2

1. must use same measurement system
2. must measure same event
3. must be independent

Question 3

Total Count IOA, Interval by Interval, Point by point

Answer 3

Simplest and Crudest

smaller/larger

Question 4

Mean Count IOA

Answer 4

Average each interval add together then divide by total number of intervals. %

Question 5

Exact Count IOA

Answer 5

MOST STRINGENT

Total number of intervals in agreement by both observers then divide by total number of trials/intervals

Question 6

Scored Interval

Answer 6

Low Rates of bx

number of intervals both scored divided by at least one scored

Question 7

Unscored Interval

Answer 7

High Rates of bx

number of intervals with no occurrences divided by at least on unscored

Question 8

How often should IOA be obtained?

Answer 8

during each phase of a study
across days of the week, times of day, setting, observers
20% (minimum sessions)

Question 9

How should IOA be recorded?

Answer 9

Narrative description (most common/simplest)
Table
Graphic Display

Question 10

Acceptable scores

Answer 10

Closer to 100%

No less than 80%