sampling

Question 1

sample

Answer 1

A sample is the group of people selected to represent the population in a study

Question 2

population

Answer 2

A population is a group, sharing one or more characteristics, from which a sample is drawn

Question 3

sampling technique

Answer 3

sampling technique is the method used to obtain the participants for a study from the population.

Question 4

3 types

Answer 4

1-volunteer
2-opportunity
3-random

Question 5

opportunity

Answer 5

Opportunity sampling is when the participants are chosen because they are available at the time and place where the research is taking place.

Question 6

strengths of op

Answer 6

1-Large numbers of
participants can be
obtained
2-quickly obtained as they are already available

Question 6

weaknesses of op

Answer 6

-non representative (cant genarlise)of the population
people who are available limited so this means a SAMPLE BIAS

Question 7

volunteer

Answer 7

Volunteer sampling is when
participants react to a invited to take part in studies via advertisements or emails.

Question 8

volunteer ad

Answer 8

1-more ethical
2-more committed as they volunteer so less likely to drop out
3-easy to obtain as they come to the researcher

Question 9

dis of volu

Answer 9

-non representative of as people who respond may all be similar ex: all have free time

Question 10

random

Answer 10

Random sampling is when all members of the population are allocated number and a fixed amount of these are chosen in an unbiased way, for example,
picking out numbers from a hat or a school list

Question 11

strengths of random

Answer 11

1-representative of population as all have equal chance of getting chosen

Question 12

weakness of random

Answer 12

-list may be incomplete so not a equal chance