The Kit for assessment of Time processing (dis-)ability (KaTid®) was developed and evaluated in several studies.

The material consists of:
– the objective instrument KaTid®: flip-book and manual
– questionaires that capture time management in daily life: self-rating (Time-S) and parent-rating (Time-P)

The unique features of the objective instrument KaTid® are a) the items in time perception, aimed at measuring the duration of daily activities and b) that the instrument includes items also in orientation to time and in time management concepts defined in ICF (WHO 2007) and c) that the instrument measures one construct – time processing ability (1-5).

The KaTid® has a detailed manual describing how to proceed with assessment, exactly how to pose each question/each item and how to score. Adaptations that might be needed are described e.g. for children with physical disability.

KaTid® was validated in typically developing children age 5–10 years old (n=144) (3) and children with disabilities as ADHD, Autism or intellectual disability (n=118) (4). The results show a significant relation between the child’s results in KaTid® and the daily time management as rated by the parents (Time-P) (4, 5). KaTid®-Youth was validated with data from typically developing children (n=140) aged 5–12 år (2). Both instruments have been used in RCT studies and can measure change in children and youth with disabilities (8-10).

In the material also questionnaires measuring daily time management are included. The Time-P 5-10 was created for parents of children aged 5-10. It was validated with Rasch analysis and was found to have good psychometric properties. Time-P 10–17 is also available and was used to evaluate intervention in the RCT study by Wennberg et al (2018).

Time-S, Self-rating scale of daily time management was created for self-rating of daily time management. Validation in children aged 10–15 show good psychometric properties (13). Also Time-S for adults show good psychometric properties (12).

The material can be used to identify the level of time-processing ability and the daily time management. A excel form to transform the raw scores to scale scores is also included in the material. Combined with other information the KaTid® material will give information for planning and evaluation of intervention.

The material is available in several versions based on age and disability. The material can be purchased in conjunction with the KaTid® training.

The instrument is available in Swedish and English. Translation and evaluation is ongoing in Dutch and Japanese. If you´re interested in translating and evaluating our instruments, please contact us.

Objective instruments for KaTid®, are availible in following versions, in English:


Measurement of time processing ability in children 5-10 years old, version 19b.


Measurement of time processing ability in youths 10-15 years old, version 19.


Measurement of time processing ability in adults with mild or moderate intellectual disability. In progress, please contact us for more information.


Measurement of time processing ability in adults with cognitive disabilities such as dementia, version 2. New version in progress. Please contact us for more information.

Questionaires that capture daily time management:

Time-S comes in the following versions:
Time-S 10-17 years old, self-rating
Time-S Adult, self-rating
Time-S Senior, self-rating


Time-P comes in the following versions:
Time-P 5-10 years old, parent scale
Time-P 10-17 years old, parent scale
Time-P, proxy scale

To use the KaTid® instrument, you need to take a KaTid® course.