_____ gave the theory of Cognitive Development.

Question

Accepted Answer

The correct option is 3:
Jean Piaget (1896–1980) is universally recognized as the pioneer and preeminent figure of the Cognitive Development theory. His revolutionary work proposed that children are not miniature adults who simply know less, but are active learners, famously calling them "little scientists" who construct their understanding of the world. Piaget's theory describes intellectual development as a progression through four distinct, universal, and invariant stages: the Sensorimotor Stage (birth to 2 years), the Preoperational Stage (2 to 7 years), the Concrete Operational Stage (7 to 11 years), and the Formal Operational Stage (11 years and up). The core of this theory rests on fundamental concepts such as *schemes* (mental frameworks for knowledge), *assimilation* (fitting new information into existing schemes), and *accommodation* (modifying schemes to fit new information). These processes illustrate how a child's mental structure evolves to achieve equilibrium and increasingly complex thought.

The incorrect option is 1:
Jean-Jacques Rousseau (1712–1778) was an influential Genevan philosopher and writer of the Enlightenment era, whose focus was on political theory and education philosophy, not empirical psychological study. His ideas, particularly those expressed in *Emile, or On Education*, heavily influenced later educational reformers by arguing for a child-centered approach that respected the natural developmental timeline. However, Rousseau's contribution was a philosophical one that provided broad guidelines for child rearing and pedagogy. He did not conduct scientific observations or longitudinal studies to formulate a detailed, stage-based model that explains the specific mechanisms of how a child's *logical thinking* and problem-solving abilities progress, which is what the theory of Cognitive Development explicitly addresses.

The incorrect option is 2:
Sigmund Freud (1856–1939) is known as the founder of Psychoanalytic Theory, which marked a major shift in psychological thought. Freud’s theory primarily concentrated on the development of personality and the emotional life of the individual, driven by unconscious psychosexual energy and internal conflicts. His five Psychosexual Stages (Oral, Anal, Phallic, Latency, and Genital) describe how the libido's focus affects personality formation and potential fixations. Therefore, while Freud's work is central to the history of psychology and personality development, his focus was on the structure of the mind (Id, Ego, Superego) and emotional resolution. It did not systematically detail the universal, sequential evolution of a child's logical reasoning and intellectual capacity, the core subject of cognitive development.

The incorrect option is 4:
Erik H. Erikson (1902–1994) is celebrated for his Psychosocial Theory of Development, which provides a comprehensive framework for understanding the development of personality and social competence across the entire lifespan. Erikson proposed eight stages, each characterized by a critical *psychosocial* crisis or conflict that an individual must resolve (e.g., Industry vs. Inferiority or Identity vs. Role Confusion). Successful resolution of these social and emotional challenges leads to the acquisition of basic virtues, contributing to a healthy ego identity. While his work is crucial in developmental psychology for its emphasis on cultural and social context, its primary domain remains the *social and emotional* self, rather than the intricate, structured changes in a person's cognitive processes and ways of thinking.