Test of Everyday Attention for Children (TEA-Ch) - Reliability

Test retest reliabilites for the subtests of the TEA-Ch are presented below. For measures with a good range these are test-retest correlations with age partialled out (if age is not removed, spuriously high correlations are achieved). Where ceiling effects make correlations unrealistic, the percentage agreement within 1 standard deviation (3 age scaled points) for 1st and second test is given.

Table A

Test retest correlation coefficients (age partialled out) and percentage agreements for measures with ceiling effects for 55 children

Correlation coefficient
Sky Search time-per-target
Sky Search attention score
Creature Counting accuracy
Creature Counting timing score
Sky Search DT decrement
Map Mission
Score DT
Walk, Don't Walk
Same World time
Opposite World time
Code transmission


Retest sample

Data from the group of children who were retested on the TEA-Ch between 5 and 20 days following a first administration were used to estimate the probability of practice effects of different sizes.

To do this, raw scores from version B performances were scaled using the transforms established from the total sample of version A scores. The probability of increases or decreases in scaled score from version A to version B were then calculated. Table B shows the level of change in scaled scores that were observed in 5% or less of the population.

Table B

Expected practice effects when version B of the TEA-Ch is used following a previous administration of version A.

Changes seen in 5% or less of the population


A drop from scaled to TEA-Ch B score of

An increase from scaled to TEA-Ch B score of
Sky Search time-per-target 2 or more 5 or more
Sky Search Attention Score 3 or more 5 or more
Score! 7 or more 6 or more
Creature Counting accuracy 4 or more 6 or more
Creature Counting timing 4 or more 6 or more
Sky Search DT 4 or more 10 or more
Map Mission 3 or more 7 or more
Score DT 6 or more 6 or more
Walk, Don't Walk 3 or more 8 or more
Same World 3 or more 5 or more
Opposite World 3 or more 5 or more
Code Transmission 3 or more 5 or more


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