Lesson 19

Question 1

Random selection of subjects or elements of the population

Answer 1

Probability sampling

Question 2

The goal is to examine representative elements of the population

Answer 2

Probability sampling

Question 3

Each unit in the population has a “known, non-zero chance” of being included in the sample

Answer 3

Probability sampling

Question 4

The selection of samples on random basis from a sampling frame

Answer 4

Simple random sampling

Question 5

Each element has an equal chance or probability of being chosen as subject of the study

Answer 5

Simple random sampling

Question 6

Involves the use of sampling frame

Answer 6

Simple random sampling

Question 7

Sampling that uses the table of random numbers, computer software generated table of random numbers or a lottery

Answer 7

Simple Random Sampling

Question 8

It is used in survey involving relatively small population with readily available sampling frames

Answer 8

Simple random sampling

Question 9

Divides the population into homogenous subgroups from which elements are selected at random

Answer 9

Stratified Random Sampling

Question 10

This is done to ensure representative of the sample size by “grouping elements with similar strata” and selected the desired number of elements

Answer 10

Stratified Random Sampling

Question 11

The successive selection of random samples from a larger to smaller units by using either simple random or stratified random methods

Answer 11

Cluster Sampling or Multi-Stage Sampling

Question 12

It involves “several stages” in drawing the samples from the population

Answer 12

Cluster Sampling / Multi Stage Sampling

Question 13

It is used when a sampling frame for the elements is not readily available and when “cost considerations are important”

Answer 13

Cluster Sampling

Question 14

The selection of samples in sequence according to predetermined modality such as: 10th name in a list

Answer 14

Systematic or Sequential Sampling

Question 15

This is used when a sampling frame is not available

Answer 15

Systematic / Sequential Sampling

Question 16

Sequence selection can also be done in odd or even numbered names on the sampling list

Answer 16

Systematic or Sequential Sampling

Question 17

The researcher picks out the first name by chance, then proceed to every 5th, 10th

Answer 17

Systematic / Sequential Sampling

Question 18

What is the formula of Systematic / Sequential sampling

Answer 18

k = N/n

Question 19

What is “k”

Answer 19

Sampling interval / nth

Question 20

The standard distance between elements for chosen sample

Answer 20

k or sampling interval

Question 21

The ratio of the population size to the sample size

Answer 21

k / sampling interval