The Tellegen & Briggs Formula 4 Calculator, available at Cogn-IQ.org, is a specialized tool designed to help professionals recalibrate and interpret scores from psychological assessments. It provides an efficient way to calculate the Tellegen-Briggs Index (TBI), which is particularly useful when standardization data is unavailable or limited. Background The Tellegen-Briggs …
The Flynn effect, which refers to the steady rise in intelligence test scores observed over decades, has been a subject of significant interest in psychological research. While this phenomenon has been extensively documented in European populations, fewer studies have explored its presence or reversal in the United States, especially among …
The Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V) has been widely used to assess cognitive abilities in children. This article by Peter F. de Jong evaluates the validity of interpreting WISC-V profiles of strengths and weaknesses, which are often derived from differences between overall scores and index scores. Background The …
Frey and Detterman (2004) conducted an influential study examining the relationship between the Scholastic Assessment Test (SAT) and general cognitive ability (g). Their research sought to determine the degree to which SAT scores reflect g and assess the test’s potential use as a premorbid measure of intelligence. The findings provided …
