part 2.b

Question 1

In this method, the researcher has a direct contact with the interviewee. The researcher obtains the information needed by asking questions and inquiries from the interviewee. This method is usually used in business research. Using this method, the researcher can get more accurate answers or responses since clarifications can be made if the interviewee or respondents does not understand the question. However, this method is costly and time-consuming.

Answer 1

direct interview

Question 2

This method makes us of a written questionnaire. The
researcher gives or distribute the questionnaire to the
respondents either by personal delivery of by mail. Using this method, the researcher can save a lot of time and money in gathering the information needed because questionnaires can be given to a large number of respondents at the same time. However, the researcher cannot expect that all distributed questionnaires will be retrieved because some
respondents simply ignore the questionnaires. In addition, clarification cannot be made if the respondent does not understand the question.

Answer 2

indirect method / questionnaire method

Question 3

This method of collecting data is governed by laws.
For example, birth and death rates are registered in
the National Statistics Office (NSO) for records and
future use. The number of registered cars can be
found at the Land Transportation Office (LTO). The
list of registered voters in the Philippines is found at
the Commission on Elections (COMELEC). This
method of gathering data is perhaps the most
reliable because this is enforced by law.

Answer 3

registration method

Question 4

This method is usually used to find out cause and
effect relationships. Scientific researchers often use
this method. For example, agriculturists would like
to know the effect of a new brand of fertilizer on the
growth of plants. The new kind of fertilizer will be
applied to ten sets of plants, while another set of
ten plants will be given the ordinary fertilizer. The
growth of the plants will them be compared to
determine which fertilizer is better.

Answer 4

experimentation method

Question 5

This method is utilized to gather data regarding attitudes, behavior, values, cultural patterns of the
samples under investigations.

Answer 5

observation method

Question 6

To determine the sample size from a given population size,

Answer 6

slovin’s formula

Question 7

next step after collection of data

Answer 7

choose sampling technique

Question 8

is a procedure used to determine the individuals or members of a sample. They are used to answer the question concerning who will be included in
the sample.

Answer 8

Sampling technique

Question 9

is a sampling technique wherein each member or element of the population has an equal chance of being selected as members of the sample.

It is important that we have a complete list of the members of the population. Sampling without bias
because selection of members of the sample is not
predetermined.

Answer 9

probability sampling

Question 10

is a sampling technique wherein members of the ample are drawn from the population based on the judgement of the researchers.

The results of a study using this sampling technique are relatively biased. This technique lacks objectivity of selection; hence, it is sometimes called subjective sampling. Inferences made used on the sample obtained using this technique are not so reliable.

They are used because they are convenient and economical. Researchers use these methods
because they are inexpensive and easy to conduct.

Answer 10

Non-probability sampling

Question 11

1.1. Random Sampling

Answer 11

1.1.1. Lottery Method

1.1.2. Table of Random Numbers

1.1.3. Using the Scientific Calculator

Question 12

sample is selected by lsting a population sequentially and choosing members at regular intervals

Answer 12

systematic sampling

Question 13

The word stratified comes from the root word strata which means group or categories. (Singular form is stratum)

The members of the population do not belong to the same category, class or group.

When we use this method, we are actually dividing the elements of a population into different categories or subpopulations and then the members of the sample are drawn or selected proportionally form each subpopulation.

Answer 13

stratified sampling

Question 14

is a process of selecting clusters from a
population which is very large or widely spread out over a wide geographical area.

Answer 14

cluster sampling

Question 15

is a combination of several sampling techniques. Usually this method is used by researchers who are interested in studying a very large population, say the whole island of Luzon or even the Philippines.

Answer 15

multi-stage sampling

Question 16

is a process of selecting a group of individuals who (conveniently) are available for study.

Answer 16

Convenience sampling

Question 17

is applied when an investigator survey collets
information from an assigned number, or quota of individuals from one of several sample units fulfilling certain prescribed criteria or belonging to one stratum. Their advantage is that they are cheaper to administer.

Answer 17

quota sampling

Question 18

is a process of selecting based from judgement to select a sample which researcher believed, based on prior information, will provide the data they need.

Answer 18

purposive sampling

Question 19

is a technique when the researcher relies on his/her personal/sound judgement in choosing to participate in the study or the sample selected is based on the opinion of an expert.

Answer 19

judgement sampling

Question 20

is technique in which one or more members of a population are located and used to lead the researchers to other members of the population.

Answer 20

snowball sampling

Question 21

is a technique when sample are composed of
respondents who are self-select into the study/survey. Most of the time sample have a strong interest in the topic of the study.

Answer 21

voluntary sampling