संरचित अवलोकन (structured observation) में जब किसी प्रतिदर्शित (sampled) व्यक्ति का एक पूर्व-निर्धारित समय अवधि में अवलोकन किया जाता है, तो उसे क्या कहा जाता है?

A researcher wants to explore the effect of possible factors on the organization of effective computer-based learning interventions in schools. Which research method is most appropriate for this study?

Which of the following steps is NOT essential while designing a questionnaire?