Our instruments

ESSENCE Instruments has developed a wide range of screening instruments/diagnostics aids for use in the healthcare and education sector as well as in the world of academic research. Below you will find a brief overview of each of our instruments.

  • A-TAC

    The A-TAC (Autism-Tics, ADHD and other Comorbidities) is a telephone interview designed for the CATSS study in Sweden, aiding in screening for autism, ADHD, DCD, and learning disabilities. It is validated through interviews with parents and has specific cut-offs for various conditions.

  • ASDASQ

    The ASDASQ is a screening tool for autism spectrum disorders (ASD) in adult psychiatric outpatients. It comprises nine symptom-oriented questions and one relating to previous contact with child psychiatry. High scores (5 or higher) suggest further evaluation for ASD, aiding in screening psychiatric populations for ASD.    

  • ASDI Parent

    The ASDI (Autism Spectrum Diagnostic Interview) is an investigator-based interview intended for use by psychiatrists who want to determine in 15-20 minutes whether an individual patient is likely to meet criteria for a diagnosis of Asperger Syndrome or Autism.  

  • ASDI Teenager

    The ASDI (Autism Spectrum Diagnostic Interview) is an investigator-based interview for use by psychiatrists who want to determine in 15-20 minutes whether an individual patient is likely to meet criteria for a diagnosis of Asperger Syndrome or Autism.  

  • ASSQ

    The ASSQ (Autism Spectrum Screening Questionnaire) is one of the most widely used autism screening tools in the world for screening. The ASSQ consists of 27 items.

  • ASSQ-REV

    The ASSQ-REV was developed with a view to capturing concerns/symptoms of autism that might be more typically occurring in girls than boys. Very few studies have been performed showing that there might indeed be a few of the extra 18 items included in the ASSQ-REV as compared with the ASSQ that particularly capture the female autism phenotype.

  • ESSENCE-Q Adult

    The ESSENCE-Q Adult is a screening questionnaire for adults with 12 items addressing potential concerns about problems during early development.

  • ESSENCE-Q Child

    The ESSENCE-Q Child is a screening questionnaire designed for screening in health/clinical and research settings with the aim of helping child and school health staff/clinicians and researchers.

  • SAB 0-2

    The SAB 0-2 (Symptoms of Autism Before age 2 years) is a parent/caretaker questionnaire to study the earliest symptoms and signs of autism and to find indicators that could separate autism from intellectual disability before age 2 years.