P3.1. Principle of Sampling

Question 1

set of complete collection or totality of all possible values of the variable.

Answer 1

Population (N)

Question 2

a subset or sub-collection of elements drawn from a population

Answer 2

Sample (n)

Question 3

Stages of selecting a sample:

Answer 3

1. Define the target population
2. Select a sampling frame
3. Determine if a probability or nonprobability sampling method will be chosen
4. Plan procedure for selecting sampling units
5. Determine sample size
6. Select actual sampling unit
7. Conduct fieldwork

Question 4

the higher the percentage of the sample,

Answer 4

the higher the validity of the study.

Question 5

The bigger the population,

Answer 5

the lesser percentage of the sample is taken.

Question 6

• specific calculation of the sample for the purpose of adequate sampling.
• advised given by PAGOSO.

Answer 6

SLOVEN’S FORMULA

N = population
n = sample
e = margin of error or percentage of error

Question 7

Sampling Techniques:

Answer 7

PROBABILITY SAMPLING
NON-PROBABILITY SAMPLING

Question 8

sampling techniques under PROBABILITY SAMPLING:

Answer 8

• simple random sampling
• systematic sampling
• cluster sampling
• stratified sampling

Question 9

sampling techniques under NON-PROBABILITY SAMPLING:

Answer 9

• purposive sampling
• quota sampling
• convenience sampling
• snowballing sampling

Question 10

In this technique elements of the sample are selected through lottery.

Answer 10

Simple Random Sampling

Question 11

• taking every element in the population assignment of number as a part of the sample.
• n elements from a population of N element
• divide the N element in the population in the n groups of kth elements.

Answer 11

Systematic Sampling

Question 12

• this technique is being divided into sections
• randomly select as the member of the sample size.

sections or?

Answer 12

Cluster Sampling

clusters

Question 13

• the population is subdivided into at least two different subpopulation that share the same characteristics and then the elements of the sample are drawn from its stratum proportionately.
• Can be proportional or non-proportional

subpopulation or?

Answer 13

Stratified Sampling

strata

Question 14

elements of the sample are being selected according to the criteria or rules set.

Answer 14

Purposive Sampling

Question 15

Purposive Sampling is also known as?

Answer 15

Judgemental/ Authorative Sampling

Question 16

In this technique, the sample size is limited on the required number or subject in the study.

Answer 16

Quota Sampling

Question 17

In this technique, the sample are being selected from a particular place at specified time preferred.

Answer 17

Convenience Sampling

Question 18

Convenience Sampling is also known as?

Answer 18

Haphazard/Opportunity Sampling

Question 19

In this technique, the researcher asks respondents to give referrals to other possible respondents.

Answer 19

Snowballing Sampling