Mendoza, Michael Rey E.
STEM 12- Mitigation
Inquiries, Investigations and Immersion
Module 7
What I Know
Directions: Choose the letter of the best answer. Write the chosen letter on a
separate sheet of paper.
1. Which of the following is the BEST choice as an essential question for a
research paper about life on planets?
a. Why would being the closest or farthest planet from the sun affects
the ability to sustain life?
b. Why is there no life on the moon?
c. What are the planets we know have life on them?
d. What factors affect a planet’s ability to sustain life?
2. Identify the Population: Magsaysay National High School randomly\ selected
230 teachers to find out which technology resource is the most effective. Thirty
teachers chose Safari Montage, 45 selected Learn Zillion, 100 chose Ed Puzzle,
and 55 chose Kahoot. GCPS concluded that all teachers prefer Ed Puzzle.
a.
b.
c.
d.
200 teachers
100 teachers
55 teachers
all teachers
3. A survey will be given to 100 students randomly selected from the Grade 11
classes at Magsaysay National High School. What is the sample population of
the study?
a.
b.
c.
d.
100 students
all grade 11 in MNHS
all senior high students of MNHS
all the senior
4. Ideally, samples for qualitative research should follow the concept of ______.
a. interpretivism
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b. population
c. saturation
d. sampling
5. Simple random sampling is a ______ sampling method.
a.
b.
c.
d.
confusing
non-probability
probability
target population
Lesson 1
What I Have Learned
Fill in the blanks with the correct terms to complete the following statements.
Answers may be more than one word. Write your answers on your notebook.
(2points each)
1. In a research design, population and sampling are two important
terms. A population is a group of individuals that share common connections.
2. A sample is a subset of the population.
3. The sample size is the number of individuals in a sample.
4. The more representative the sample of the population, the more
confident the researcher can be in the quality of the results.
5. In probability sampling, the aim is to identify a sample that
resembles the population from which it was drawn.
6. There are Four types of probability samples including, simple
random sample, stratified random sample, cluster (area) sample and
Systematic sampling.
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What I Can Do
In this activity, you will apply the basic concepts of population and sampling
techniques. First, you need to analyze the paragraph and then answer what are
asked. Write your answers on your notebook. (5points each) The current Corona
Virus (COVID-19) pandemic has impacted and changed lives on a global scale
since its emergence and spread from China in late 2019.\ It has caused millions
of infections, and thousands of deaths worldwide. However, the control of this
pandemic still remains unachievable. Therefore, this study assessed the
knowledge, attitude, and perceptions of senior high school students towards the
COVID-19 pandemic. A total of 1,500 respondents were included in this
preliminary report. A survey of knowledge, attitude, and perceptions towards
the 2019 Corona virus pandemic in the Bataan province found that majority of
the respondents had a61.6% satisfactory knowledge of the disease while the
attitude of most respondents towards instituted preventive measures were
68.9% satisfactory and only 22% of the respondents were satisfied with their
country’s handling of the pandemic.
Formulate the Research Questions of the study:
The effect of online learning on communication between instructors and
students during Covid-19 pandemic
Identify Population of the study:
Senior High Students
Identify the Sample size of the Study:
The needed sample size was 1500 Respondents.
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LESSON 2
What I Have Learned
Carefully read each statement or question below then fill in the blanks with the
correct answer. Answers may be more than one word. Write your answers on
your notebook. ( 2points each)
1. Nonprobability samples might be used when researchers are conducting
exploratory research, by evaluation researchers, or by researchers whose aim
is to make some theoretical contribution.
2. A purposive sampling, also referred to as a judgmental or expert sample, is a
type of nonprobability sample.
3. Snowball sampling is defined as a nonprobability sampling technique in
which the samples have traits that are rare to find.
4. Quota Sampling as a nonprobability sampling method in which researchers
create a sample involving individuals that represent a population. Researchers
choose these individuals according to specific traits or qualities.
5. Convenience sampling is a type of non-probability sampling in which people
are sampled simply because they are "convenient" sources of data for
researchers
What I Can Do
Answer each question in a clear and organized paragraph. Each paragraph
should include a clear and precise (1–2 sentences) that directly addresses the
question promptly. Each short answer question is worth a total of 5 points. Use
the rubric for this assessment to evaluate your response. Write your answers on
your notebook.
1. Imagine that you are about to conduct a study of people’s use of gadgets in
answering their modules in your barangay. Explain how you could employ each
of the nonprobability sampling techniques described previously to recruit a
sample for your study.
2. Of the four nonprobability sample types described, which seems to be the
strongest for you and which seems to be the weakest? Explain your answer.
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Non-probability sampling
In a non-probability sample, individuals are selected based on nonrandom criteria, and not every individual has a chance of being included. This
type of sample is easier and cheaper to access, but it has a higher risk of
sampling bias. That means the inferences you can make about the population
are weaker than with probability samples, and your conclusions may be more
limited. If you use a non-probability sample, you should still aim to make it as
representative of the population as possible. Non-probability sampling
techniques are often used in exploratory and qualitative research. In these types
of research, the aim is not to test a hypothesis about a broad population, but to
develop an initial understanding of a small or under-researched population.
The strongest is the stratified sampling because stratified sampling is a
good technique to use when, as in our example, a subgroup of interest makes
up a relatively small proportion of the overall sample. In our example of a study
of use of public space on campus, we want to be sure to include weekdays and
weekends in our sample, but because weekends make up less than a third of an
entire week, there’s a chance that a simple random or systematic strategy would
not yield sufficient weekend observation days. As you might imagine, stratified
sampling is even more useful in cases where a subgroup makes up an even
smaller proportion of the study population, say, for example, if we want to be
sure to include both men’s and women’s perspectives in a study, but men make
up only a small percentage of the population. There’s a chance simple random
or systematic sampling strategy might not yield any male participants, but by
using stratified sampling, we could ensure that our sample contained the
proportion of men that is reflective of the larger population.
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Assessment
Directions: Choose the letter of the best answer. Write your answers on your
notebook.
1. What is the main difference between probability and non-probability
sampling?
a. Probability sampling involves the need for the computation of a sample via
certain equations.
b. Randomization is involved in probability sampling.
c. Non-probability sampling is preferred in qualitative research.
d. Non-probability sampling is more appropriate for interviews.
2. During the conduct of his survey, Lucas chose his respondents by ensuring
that they are those who can provide him the needed data for his study. The type
of non-probability sampling that he utilized is known as:
a.
b.
c.
d.
Convenience sampling
Judgment sampling
Snowball sampling
Quota sampling
3. Ideally, samples for qualitative research should follow the concept of ______.
a.
b.
c.
d.
approximate
interpretivism
saturation
sampling
4. A type of probability sampling where the researcher randomly selects groups
from an assemblage then considers the population for each selected group to be
engaged in the study.
a.
b.
c.
d.
Cluster sampling
Simple random sampling
Stratified random sampling
Systematic sampling
5. A type of non-probability sampling where the required sample and sample per
stratum is determined and complied, however, it lacks randomization in the
selection of the respondents for the study.
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a.
b.
c.
d.
Convenience sampling
Judgment sampling
Snowball sampling
Quota sampling
6. Maricel determines her respondents by asking people as to who would be
most suited for her study. Through this, she is referred from one respondent to
the other. What type of non-probability sampling has been utilized?
a.
b.
c.
d.
Convenience sampling
Judgment sampling
Snowball sampling
Quota sampling
7. Which of the following is an example of random sampling technique?
a. Taking the name of every person in a telephone book.
b. Generating a list of numbers by picking numbers out of a hat and matching
these numbers to names in the telephone book.
c. Generating names by five on the list of everybody in your phonebook.
d. Taking every 10th or 20th name from a list of everybody in the
telephone book.
8. Quantitative research only works if:
a.
b.
c.
d.
You talk to the right number of people
You talk to the right type of people
You ask the right questions and analyze the data you get in the right way
all of the above
9. Cluster sampling is often preferred to other random sampling strategies
because it:
a.
b.
c.
d.
can be used when a sampling frame is not available.
is more complicated than simple random sampling.
equally represents all groups in the population.
allows you to easily identify subgroups in the population.
10. Convenience samples are frequently used in student research because they:
a. Are more appropriate for\ statistical analysis.
b. Are preferred by instructors.
c. Take less time and money.
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d. Yield representative samples
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