'अनुभव का शंकु' (Cone of Experience) अधिगम मॉडल किसके द्वारा प्रस्तुत किया गया था?

Identify the true statement(s): 1. Non-formal educational interventions are important for developing societies. 2. Non-formal education is more flexible in terms of timing, age requirements, and curriculum.

The effectiveness of knowledge and skills acquired through non-formal education can be evaluated in terms of: 1. Personal development2. Involvement in community activities3. Competency in performing tasks4. Increased employment or livelihood opportunities