Intelligence Quotient (IQ) testing has played an important role in psychology, education, clinical assessment, and psychodiagnostics. IQ tests are designed to measure cognitive abilities such as reasoning, problem-solving, memory, verbal comprehension, and processing speed. However, despite their widespread use, IQ testing has generated considerable controversy regarding what intelligence actually represents, how accurately it can be measured, and whether test results can be interpreted fairly across different individuals and cultural groups. One major controversy concerns the definition of intelligence itself. Intelligence is a complex and multidimensional concept that cannot necessarily be reduced to a single numerical score. Traditional IQ tests generally emphasize abilities such as logical reasoning, verbal skills, mathematical understanding, and certain forms of abstract thinking. Critics argue that intelligence also involves creativity, practical problem-solving, emotional understanding, social competence, motivation, and adaptability, which may not be adequately represented in conventional IQ scores. Therefore, a single IQ score may provide only a partial picture of an individual's cognitive functioning. Cultural and socioeconomic bias is another significant concern. Many IQ tests are developed and standardized within particular cultural and linguistic contexts. Individuals from different cultural, linguistic, educational, or socioeconomic backgrounds may be unfamiliar with the assumptions, vocabulary, experiences, or problem-solving approaches reflected in test items. Consequently, differences in IQ scores may sometimes reflect