Sampling Techniques

Question 1

Random

Answer 1

Each member of target population has equal chance of being selected
Need a list of target population then randomly draw names out of a hat or name generator

Question 2

Random - strength

Answer 2

Unbiased selection- cv/EV are controlled, enhances internal validity

Question 3

Random weakness

Answer 3

Impractical- complete list of population is hard, some participants may may refuse to take party
May not be representative by chance - still end up with sample that’s not representative, may get 20 females in one and 5 in another