Unfortunately, I cannot provide the author of the following conceptual definitions as they are not attributed to any specific source. However, I can provide operational definitions for each term:

1. Assessment: Conceptual Definition: The process of gathering and analyzing information to evaluate the knowledge, skills, abilities, or performance of individuals, groups, or organizations. Operational Definition: Assessment refers to the systematic collection and analysis of data or evidence to measure and evaluate the knowledge, skills, abilities, or performance of individuals, groups, or organizations. This can be done through various methods such as tests, exams, observations, or interviews.

2. Effectiveness: Conceptual Definition: The degree to which a program, intervention, or action achieves its intended goals or objectives. Operational Definition: Effectiveness refers to the extent to which a program, intervention, or action successfully accomplishes its intended goals or objectives. It can be measured by assessing the outcomes or results achieved in relation to the desired outcomes or objectives.

3. National Certificate: Conceptual Definition: A formal document issued by a recognized authority or governing body that certifies an individual’s competence or qualification in a specific field or occupation. Operational Definition: A National Certificate is an official document issued by a recognized authority or governing body that serves as evidence of an individual’s competence or qualification in a specific field or occupation. It signifies that the individual has met the required standards and possesses the necessary knowledge, skills, and abilities in that particular area.

4. Future Career Perspective and Technical Vocational Livelihood: Conceptual Definition: The potential opportunities, prospects, or outlook for an individual’s future career in a specific technical or vocational field. Operational Definition: Future Career Perspective and Technical Vocational Livelihood refer to the potential opportunities, prospects, or outlook for an individual’s future career in a specific technical or vocational field. It encompasses the various possibilities for employment, advancement, income, and professional growth within that particular industry or occupation.