The term triangulation indicates
(i) the use of at least three investigators.
(ii) the use of at least three data-sets.
(iii) the use of at least three theoretical perspectives.
(iv) the use of more than three methods of data collection.
Choose the correct one from the following:
1
(i) is correct.
2
(i) and (ii) are correct.
3
(i), (ii) and (iii) are correct.
4
(i), (ii), (iii) and (iv) are correct.