Projective Tests

  • The CTT uses numbered coloured circles and universal sign language symbols. The circles are printed with vivid pink or yellow backgrounds that are perceptible to colourblind individuals. For the Colour Trails 1 trial, the respondent uses a pencil to rapidly connect circles numbered 1 through 25 in sequence. For the Colour Trails 2 trial, the respondent rapidly connects numbered circles in sequence…

  • Research conducted after the publication of the original Dementia Rating Scale (DRS) showed that both age and education contribute significantly to DRS sub-scale and total scores. This finding, along with several other factors provided the impetus for the development of the DRS-2.The DRS-2 measures cognitive function at lower ability levels where some other evaluation instruments are limited by fl…