lec 3- Data Collection and Sampling Methods

These flashcards cover key concepts related to data collection, sampling methods, and bias as discussed in the lecture.

What is convenience sampling?

A sampling method where individuals are easily obtained and not based on randomness.

What is an example of convenience sampling?

Amazon reviews, where typically only customers with strong opinions review a product.

What is sampling bias?

When the technique used to obtain the sample's individuals tends to favor one part of the population over another.

What is nonresponse bias?

Exists when individuals chosen for a sample do not respond and have different opinions than those who do.

What is response bias?

Occurs when survey answers do not reflect true opinions, possibly due to confusing questions or social pressure.