QUALITATIVE Research

PRACTICAL RESEARCH 3

Jaycel A. Gesmundo

Open Ended

KAMUSTA KA?

GOALS FOR TODAY

- Describe the sampling procedure to be used

- Plans data collection and analysis procedures 

- Differentiate the data gathering procedures

PURPOSE OF QUALITATIVE RESEARCH

Multiple Choice

Identify the Population:

LSPU randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

• 230 Teachers

• All LSPU Teachers

• Students

• LSPU

POPULATION

• the entire group that you want to draw conclusions about.

Multiple Choice

Identify the Sample:

A restaurant wants to know if their customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.

• 20 customers

• All customers

• 8 customers

• Dessert

SAMPLE

• specific group that you will collect data from.

• The size of the sample is always less than the total size of the population. 

• In research, a population doesn’t always refer to people.

• 
  

REASONGS FOR SAMPLING

• NECESSITY

• PRACTICALITY

• COST-EFFECTIVENESS

• MANAGEABILITY

Poll

DO YOU STILL FOLLOW THE DISCUSSION?

• YES

• NO

Multiple Choice

In order to use samples to estimate something from the population, the sample should be _________________ the population.

• exactly the same as

• nothing like

• representative of

• larger than

Multiple Choice

The population describes:

• The group of people, objects or events being surveyed
• a part of the group being surveyed
• the whole world
• the school

Multiple Choice

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

• The sample didn't include students.

• The sample is too small.

• The sample can only be accurate if each teacher is included in the sample

Multiple Choice

Unbiased sampling is:

• when you choose the group you think will give you the answer you want, accept volunteers or survey by convenience

• when any member of the population is equally likely to be chosen for the sample

DIFFERENT TYPES OF SAMPLING METHODS

PROBABILITY SAMPLING

NON-PROBABILITY SAMPLING

PROBABILITY SAMPLING

- theory of probability.

-For a participant to be considered as a probability sample, he/she must be selected using a random selection.

TYPES OF PROBABILITY SAMPLING

• Simple random sampling

• Systematic random sampling

• Stratified random sampling

• Random Cluster sampling

Poll

DO YOU STILL FOLLOW THE DISCUSSION?

• YES

• NO

Multiple Choice

Farmer Joe randomly picks 100 trees using a random number generator to estimate the number of apples produced by his apple trees. This is ______________ sampling.

• Simple

• Stratified

• Cluster

• Systematic

Multiple Choice

Farmer Joe's apple tree farm is set up in 100 rows. He counts the number of apples produced on every 10th row to estimate the number apples produced on the whole farm. This is _____________ sampling.

• Simple

• Stratified

• Cluster

• Systematic

Multiple Choice

Farmer Joe separates his apple tree farm into 10 regions. He counts the number of apples produced in just one of the regions and uses that estimate to predict the number of apples produced on the whole farm. This is _______ sampling.

• Simple

• Cluster

• Stratified

• Systematic

Multiple Choice

Mrs. Trahan samples her class by picking 10 numbers from her hat and each number is assigned to a student. This is ______________ random sampling.

• Systematic

• Simple

• Stratified

• Cluster

Multiple Choice

Mrs. Trahan samples her class by selecting every third person on her class list. Which type of sampling method is this?

• Simple

• Systematic

• Stratified

• Cluster

Multiple Choice

True or False: all samples lead to a good prediction about an entire population.

• True

• False

NON-PROBABILITY SAMPLING

- not a fixed or pre-defined selection process which makes it difficult for all elements of a population to have equal opportunities to be included in a sample

TYPES OF NON-PROBABILITY SAMPLING

• Purposeful/Purposive Sampling

• Quota Sampling

• Snowball Sampling

WHEN TO USE NON-PROBABILITY SAMPLING

• particular trait or characteristic exists in a population

• they aim at conducting qualitative research, pilot studies, or exploratory research

WHEN TO USE NON-PROBABILITY SAMPLING

• limited time to conduct research or have budget constraint

• particular issue needs in-depth analysis, he applies this method

• Use it when you do not intend to generate results that will generalize the entire population

Multiple Choice

Dylan wants to know how the students at his school rate the cafeteria. He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

• Yes, because it is a convenience survey

• No, the basketball team has the smartest students

• Yes, because it's voluntary survey

• No, he should have asked the football team

Multiple Choice

You want to know what is the most favorite sport of 7th graders at BMS.  You ask 7th graders who want to participate to go to the office 5th period to complete a survey.  This is...

• Biased, because it is a convenience sample
• Unbiased
• Biased because it is an interval sample
• Biased because it is a volunteer sample

TYPES OF DATA GATHERING PROCEDURES

• OBSERVATION

• INTERVIEW

• SURVEY

OBSERVATION

• Casual and Scientific Observation

• Natural Observation

• Subjective and Objective Observation

• Direct and Indirect Observation

OBSERVATION

• Participant and Non Participant Observation

• Structured and Unstructured Observation

• Controlled and Un-controlled Observation

• Covert and Overt Observation

INTERVIEW

• Structured interview

• Unstructured interview

• Semi-structured interview

Poll

DO YOU STILL FOLLOW THE DISCUSSION?

• YES

• NO

SURVEY

• Self-completion Survey

• Interviewer-based Surveys

Poll

How well do you think you know this material?

• I understand all of the topics

• I understand most of the topics but still need some practice

• I'm understanding about half

• I am still struggling and need help