Factors to Consider in Determining the Sample Size

Question 1

The higher the degree of variation within the population, the smaller the sample size can be utilized.

Answer 1

Homogeneity of the population

Question 2

A larger sample size will result in greater precision or accuracy of the results.

Answer 2

Degree of precision desired by the researcher

Question 3

Probability sampling utilizes smaller sample sizes than non-probability sampling

Answer 3

Types of Sampling Procedure

Question 4

Used when the population is more than 100 and the researcher decides to utilize scientific sampling.

Answer 4

Calmorin’s Formula

Question 5

What sample size is generally adequate to ensure that the sampling distribution of the mean will approximate the normal curve?

Answer 5

Sample sizes as small as 30

Question 6

When the total population is equal to or less than 100, this same number may serve as the sample size.

Answer 6

Universal Sampling

Question 7

Acceptable sample size for descriptive research?

Answer 7

10% - 20%

Question 8

Acceptable sample size for comparative research?

Answer 8

15/group

Question 9

Acceptable sample size for experimental research?

Answer 9

15-30 / group

Question 10

a technique used to select members of the target population for the purpose of identifying characteristics of the whole population.

Answer 10

Sampling

Question 11

2 Types of Sampling Methods

Answer 11

1. Probablity Sampling
2. Non-Probability Sampling

Question 12

The researcher randomly chooses members of the target population. The members have an equal chance to be selected.

Answer 12

Probability Sampling (also known as random sampling)

Question 13

The researcher selects participants based on his or her research goals.

Answer 13

Non-probability Sampling (also known as non-random sampling)

Question 14

Types of Probability Sampling/Random Sampling

Answer 14

a. Simple random sampling
b. Cluster sampling
c. Systematic sampling
d. Stratified random sampling

Question 15

Every participant is chosen randomly. It can be done by designating a code for each member of the population and then picking codes randomly.

Answer 15

Simple random sampling

Question 16

The researcher divides the whole population into sections or clusters which will represent a population. Clusters are determined based on specific demographic factors such as age, gender, geography, and the like.

Answer 16

Cluster sampling

Question 17

The researcher chooses the sample members of a population at regular intervals except for the first one chosen.

Answer 17

Systematic sampling

Question 18

The researcher divides the population into smaller groups or subgroups based on similarity.

Answer 18

Stratified random sampling

Question 19

What kind of probability/random sampling is shown below?:

If the researcher wants to sample 15 out of 150 teachers in a particular university, they can take every 10th name.

Answer 19

Systematic sampling

Question 20

What kind of probability/random sampling is shown below?:

The population has 20 English majors, 20 Math majors, and 20 Science majors. If the researcher plans to select four participants from each major, they have to divide the population first based on the member’s specialization.

Answer 20

Stratified random sampling

Question 21

Types of non-probability/non-random sampling

Answer 21

a. Convenience sampling
b. Purpose sampling
c. Snowball sampling/referral sampling
d. Quota sampling

Question 22

This relies on accessibility or proximity and availability of participants.

Answer 22

Convenience Sampling

Question 23

The researcher takes into account the purpose of the study and the capability of the target participants.

Answer 23

Purposive Sampling

Question 24

What kind of non-probability/non-random sampling is shown below?:

The researcher decides to focus on Master’s students; the only participants that will be selected are those that are currently enrolled in a masteral program.

Answer 24

Purposive sampling

Question 25

It is being applied when subjects are not easily traceable. People who already responded to the research study are asked to invite people they know to participate in the same study.

Answer 25

Snowball sampling/referral sampling

Question 26

This is conducted based on a preset standard.

Answer 26

Quota sampling

Question 27

What kind of non-probability/non-random sampling is shown below?:

If the target population has 30% teachers and 70% students, the sample population should have the same proportion.

Answer 27

Quota Sampling