2.1 Quick revision

Consider this RQ (Walters et al. 2018):

What factors are preventing the adoption of household solar technologies in Santiago [Chile]?'

For this RQ, what is the Population?
1. Solar technologies.
2. Household in the world.
3. Household in Chile.
4. Household in Santiago.
The study will be externally valid if:
1. The sample is representative of all households in Santiago.
2. The sample is representative of all households in Chile.
3. The sample is representative of all solar technologies.
4. The sample is representative of all households in the world.
Suppose the researchers mailed surveys to all households in Santiago, and people returned the survey if they wished to. What is the best description of this sampling method?
1. Systematic sampling.
2. Convenience sampling.
3. Self-selecting sampling.
4. None of the other answers are correct.
Suppose the researchers randomly selected five suburbs in Santiago; then ten streets within each of these suburbs; then ten households within each of these streets. What is the best description of this sampling method?
1. Stratified sampling.
2. Systematic sampling.
3. Multi-stage sampling.
4. None of the other answers are correct.
Suppose the researchers stood outside a busy supermarket, and surveyed every ninth person who entered. What is the best description of this sampling method?
1. Stratified sampling.
2. Systematic sampling.
3. Multi-stage sampling.
4. None of the other answers are correct.

References

Walters JP, Kaminsky J, Huepe C. Factors influencing household solar adoption in Santiago, Chile. Journal of Construction Engineering and Management. American Society of Civil Engineers; 2018;144(6):05018004.