Türkiye's First Native Intelligence Scale

With the support of Anadolu University and the Ministry of National Education, our ÜYEP Center research team developed Türkiye's first native intelligence scale: the Anadolu Sak Intelligence Scale.

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Anadolu Sak Intelligence Scale
Validity and Reliability

Download ASIS's technical validity and reliability report download.

Discriminant Validity

Download ASIS's discriminant validity report for special education groups download.

Identification Validity

Download the article on ASIS's validity in identifying gifted children download.

Social Validity

Download the article on ASIS's social validity download.

Project IQ

Project IQ

Project IQ is the research group led by Prof. Dr. Uğur Sak that developed the ASIS intelligence scale and conducts scientific research on intelligence. With the support of Anadolu University and the Ministry of National Education, we, the research team of the ÜYEP Center, developed the Anadolu Sak Intelligence Scale, Türkiye's first native intelligence scale. For the ASIS technical reports, see the links below; for scientific articles, see the articles on the scientific research page. In recent years ASIS has been the intelligence test on which the most scientific research has been conducted in Türkiye. 32 scientific articles or graduate theses have been published on ASIS.

The pilot stage of the project was completed with 1201 children aged 4-12, the standardisation stage with 4641 children, and the validity and reliability studies with more than 800 children, including special education groups. In addition to these studies, ASIS has been used as the criterion intelligence test in research on topics such as humour and creativity. Among the individual intelligence tests in the world, ASIS has the highest representativeness in terms of sample size per age group. Its validity and reliability values were found to be very good to excellent.

The first intelligence scale studies in Türkiye began in 1915 with the adaptation of the Stanford-Binet Intelligence Scale, and a culture of adapting intelligence scales formed over the following 100 years. With Project IQ we aimed both to give our country a native intelligence scale and to lead the development of new intelligence scales by breaking this culture of adaptation. In 1916 Lewis M. Terman, a professor at Stanford University, revised Alfred Binet's prototype intelligence scale, regarded as the first intelligence scale, and after carrying out standardisation and norm studies published it as the Stanford-Binet Intelligence Scale. Stanford in the name is Stanford University, where Terman worked, and Binet is Alfred Binet's surname. Pointing to this historical fact, we combined the names of Anadolu University, which funded the project, and Prof. Dr. Uğur Sak, who developed the prototype of the scale, and named it the Anadolu-Sak Intelligence Scale (ASIS for short; in Turkish, Anadolu-Sak Zeka Ölçeği).

ASIS Intelligence Scale

ASIS is an individually administered intelligence scale that objectively measures general intelligence and the main components that make up general intelligence. Consisting of seven subtests, ASIS provides eleven different component profiles in addition to subtest skill performances.

Age range
4-12
Administration
Individual
Administration time
25-45 min.
Scoring
Online automation
Administrator qualification
Level C
Theory
CHC

Indexes

  • General Intelligence Index
  • Verbal Potential Index
  • Visual Potential Index
  • Memory Capacity Index
  • Verbal IQ
  • Visual IQ
  • Scanning Index
  • Reasoning Index
  • Visual Memory Index
  • Giftedness Index
  • Learning Disability Risk Index

Uses of ASIS

  • Identification of giftedness
  • Diagnosis of intellectual disability
  • Learning disability risk assessment
  • Assessment of memory capacity
  • Assessment of visual memory level
  • Assessment of reasoning level
  • Assessment of general intelligence
  • Assessment of verbal intelligence
  • Assessment of visual intelligence
ASIS Intelligence Scale

Scientific Research with and on ASIS

32 publications: 18 articles, 14 theses, 2016–2024

  1. 2024 Article

    The effect of cognitive intervention program on intelligence scores in preschool

    Koçak, H.K. Cogn Process

  2. 2024 Article

    Factorial invariance of the ASIS across years

    Bal-Sezerel, B., Arslan, D., & Sak, U. Measurement: Interdisciplinary Research and Perspectives

  3. 2023 Article

    Factorial Invariance of the Anadolu Sak Intelligence Scale Across Gender

    Arslan, D., & Sak, U. Journal of Psychoeducational Assessment, 41(5), 542-555

  4. 2023 Article

    The cognitive profiles of gifted children: A latent profile analysis using the ASIS

    Öpengin, E., & Bal Sezerel, B. Journal of Pedagogical Research, 7,4, 400-413

  5. 2023 Article

    In search of a measure to investigate mental performance among children: Development of the mental speed test

    Avcı-Dogan, G., Akbulut, Y., & Sak, U. Infant and Child Development, 32 (4), e2427

All Research

Announcements & Updates

Stay informed about announcements and updates on ASIS.

  • Easy Scoring with ASIS

    Administer the test and enter the raw scores on the practitioner page at projeiq.com; the system will automatically provide standard scores, reports and interpretations.

All announcements