Match the following :

List I

List II

a) Experimental Method

p) Continuity of observations over time

b) Descriptive Method

q) Internal criticism of data

c) Historical Method

r) Stratified sample

d) Longitudinal Method

s) Equivalence of groups

Choose the correct option from match given below:

(a-q), (b-r), (c-s) and (d-p)

(b-r), (c-q), (d-p) and (a-s)

(c-p), (d-q), (a-s) and (b-r)

(d-q), (c-p), (b-s) and (a-r)

Question Not Attempted

List I	List II
a) Experimental Method	p) Continuity of observations over time
b) Descriptive Method	q) Internal criticism of data
c) Historical Method	r) Stratified sample
d) Longitudinal Method	s) Equivalence of groups