Why Is Direct Observation Rarely Used to Collect Social Network

question 20

Multiple Choice

Why is direct observation rarely used to collect social network data? Direct observation

• A)used to be preferred,as in ethnographies of small societies,but it is less feasible with large populations.
• B)does not reveal people's motivations or tie valences,and thus it does not produce useful data.
• C)has been replaced by "big data" generated from people's digital lives.
• D)cannot be reduced to matrix-based data organization.

---

Definitions:

Tariff

A tax imposed on imported goods and services, tariffs are used by governments to control trade, protect domestic industries, or generate revenue.

Imported Oil

Oil brought into a country from another country to meet its demand for energy and petroleum products.

Tariff

A tax imposed by a government on imports or exports of goods.

Imported Oil

Oil that is brought into a country from abroad for use as fuel or raw material in various industries.