Which statement has a very limited definition of educational technology?

• A. It is a profession composed of various job categories.
• B. It includes audiovisual materials, interactive multimedia and self-instructional materials.
• C. It is the development, application and evaluation of system, techniques and aids to improve human learning.
• D. It refers to the computers used for teaching and learning.

Answer: (D)

Educational technology is a broad field that combines theory, design, tools, and processes to enhance learning. Describing it as just computers used for teaching and learning is too narrow because it omits the planning, development, integration, and evaluation of instructional methods and resources. While devices and media are useful, the field also involves analyzing learning needs, selecting appropriate tools, designing instruction, implementing it in real settings, and assessing its effectiveness. The other statements point to this wider scope, whereas focusing only on computers limits the concept to hardware rather than the systematic approach to improving learning.