Which one of the following is a non probability sampling ?

Which of the following statement(s) is/are correct?

(i) Research is essentially an intellectual and creative activity.

(ii) The mastery of techniques and processes confer research competence.

(iii) The mastery of techniques and processes does not confer research competence.

Why is selecting a suitable researchable problem difficult for beginners in research?

(i) Lack of understanding of the nature of research and systematic problem solving activity.

(ii) Enthusiastic but naive desire to solve an important problem quickly and immediately.

Which of the following statement(s) is(are) correct about "Microfiche"?

(i) The 'Microfiche' provides economy and convenience of strong and distribution of scholarly materials.

(ii) 'Microfiche' is a sheet of film that contains images of printed materials.

(iii) Nearly one hundred $8.5"\times 11"$ pages of copy can be reproduced on one $4"\times 6"$ film card.

Which of the following statement(s) is(are) correct about a "research proposal"?

(i) Research Proposal provides a basis for the evaluation of the project.

(ii) Research Proposal gives the advisor a basis for assistance during the period of his/her direction.

(iii) Research Proposal provides a systematic plan of procedure for the researcher to follow.

(iv) Research Proposal is comparable to the blueprint that an architect prepares.