Lecture 4: Sampling & Measurement

Question 1

Sample is randomly selected across all members of the population; each member has equal probability of being selected.

a) Simple random sampling
b) Stratified random sampling
c) Purposive sampling
d) Convenience sampling
e) Cluster sampling
f) Quota sampling

Answer 1

Simple random sampling

Question 2

Population divided into subgroups; number of people randomly selected from each subgroup is proportional to their size in the population.

a) Simple random sampling
b) Stratified random sampling
c) Purposive sampling
d) Convenience sampling
e) Cluster sampling
f) Quota sampling

Answer 2

Stratified random sampling

Question 3

Clusters of people are identified from population, everyone in those clusters are the sample.

a) Simple random sampling
b) Stratified random sampling
c) Purposive sampling
d) Convenience sampling
e) Cluster sampling
f) Quota sampling

Answer 3

Cluster sampling

Question 4

Sample participants selected on the basis of availability.

a) Simple random sampling
b) Stratified random sampling
c) Purposive sampling
d) Convenience sampling
e) Cluster sampling
f) Quota sampling

Answer 4

Convenience sampling

Question 5

Sample participants selected on the basis of availability, as long as they meet some criterion.

a) Simple random sampling
b) Stratified random sampling
c) Purposive sampling
d) Convenience sampling
e) Cluster sampling
f) Quota sampling

Answer 5

Purposive sampling

Question 6

Sample participants selected on the basis of availability, but certain subgroups from population are proportionally represented.

a) Simple random sampling
b) Stratified random sampling
c) Purposive sampling
d) Convenience sampling
e) Cluster sampling
f) Quota sampling

Answer 6

Quota sampling

Question 7

What are the 3 approaches to measurement?

Answer 7

Self-Report measures, Behavioral measures, Physiological measures

Question 8

What are the 3 measures of reliability?

Answer 8

• Internal consistency (Cronbach’s alpha), test-retest reliability, Inter-rater reliability (Cohen’s kappa)

Question 9

Measures of validity: examine what it is supposed to

a) Content validity
b) Concurrent validity
c) Predictive validity
e) Face validity

Answer 9

Face validity

Question 10

Measures of validity: Capture all necessary’s aspects of the construct.

a) Content validity
b) Concurrent validity
c) Predictive validity
e) Face validity

Answer 10

Content validity

Question 11

Measures of validity: Do the scores predict related criteria measured later.

a) Content validity
b) Concurrent validity
c) Predictive validity
e) Face validity

Answer 11

Predictive validity

Question 12

Measures of validity: Are scores on the measure related to another relevant variable measured at the same time.

a) Content validity
b) Concurrent validity
c) Predictive validity
e) Face validity

Answer 12

Concurrent validity

Question 13

How well a measure is measuring the variable of interest.

Answer 13

Validity

Question 14

A measure that does not greatly alter participants’ responses or behaviour.

Answer 14

non-reactive