The following two questions on sampling will be tested in the first two countries. They will assess the potential of multiplicity and clustering. 


Multiplicity

Q4.

How many mobile phone numbers do you use on a regular basis?
PHONES
1–100

Ask Q5

REFUSED
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Ask Q5



Clustering

Q5. 

How many people aged 18 years and older regularly use this mobile phone number?
PEOPLE
1–50

Ask Q6

REFUSED
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Ask Q6