Podcast
Questions and Answers
A matrix question allows respondents to select multiple answers in a tabular format.
A matrix question allows respondents to select multiple answers in a tabular format.
False
Name one type of question found in a questionnaire that offers predefined responses.
Name one type of question found in a questionnaire that offers predefined responses.
Close-ended questions
Dichotomous questions typically have __________ possible responses.
Dichotomous questions typically have __________ possible responses.
two
Match the following types of survey questions with their definitions:
Match the following types of survey questions with their definitions:
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Which of the following is NOT a requirement of a questionnaire?
Which of the following is NOT a requirement of a questionnaire?
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Group tests of aptitude are designed to be administered to individuals one at a time.
Group tests of aptitude are designed to be administered to individuals one at a time.
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What type of questions allows respondents to choose one or more answers?
What type of questions allows respondents to choose one or more answers?
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What type of sampling involves selecting every nth element from the population?
What type of sampling involves selecting every nth element from the population?
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Cluster sampling groups members based on shared characteristics.
Cluster sampling groups members based on shared characteristics.
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What is the main criticism of nonprobability sampling?
What is the main criticism of nonprobability sampling?
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In _____ sampling, samples are taken that are readily available to participate in the study.
In _____ sampling, samples are taken that are readily available to participate in the study.
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Match the following sampling methods with their descriptions:
Match the following sampling methods with their descriptions:
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Which sampling method is likely to introduce the most bias into results?
Which sampling method is likely to introduce the most bias into results?
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Stratified sampling involves selecting random samples from distinct subgroups within the population.
Stratified sampling involves selecting random samples from distinct subgroups within the population.
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What is the sample size (n) if the total population (N) is 1000 with 200 members chosen?
What is the sample size (n) if the total population (N) is 1000 with 200 members chosen?
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What is a major drawback of simple random sampling?
What is a major drawback of simple random sampling?
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Probability sampling ensures that each member of the population has an equal chance of being selected.
Probability sampling ensures that each member of the population has an equal chance of being selected.
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What method involves drawing numbers from a fishbowl for sampling?
What method involves drawing numbers from a fishbowl for sampling?
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A list of numbers arranged in a random order used for sample selection is called a __________.
A list of numbers arranged in a random order used for sample selection is called a __________.
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Match the following research design types with their description:
Match the following research design types with their description:
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Which of the following sampling techniques involves assigning a number to each population member before selecting them?
Which of the following sampling techniques involves assigning a number to each population member before selecting them?
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Descriptive research designs include experimental and correlational research methods.
Descriptive research designs include experimental and correlational research methods.
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What type of design is characterized by a lack of control over variables?
What type of design is characterized by a lack of control over variables?
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Which sampling method involves selecting samples based on the judgment of the researcher?
Which sampling method involves selecting samples based on the judgment of the researcher?
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Snowball sampling is a method where each respondent is asked to give recommendations to other possible respondents.
Snowball sampling is a method where each respondent is asked to give recommendations to other possible respondents.
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The __________ describes how close you can expect the result of the survey from a sample to the true population value.
The __________ describes how close you can expect the result of the survey from a sample to the true population value.
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What is the purpose of rating scales?
What is the purpose of rating scales?
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What does the confidence level represent in survey sampling?
What does the confidence level represent in survey sampling?
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Reliability coefficients are derived from correlating individual scores on the same test administered at different times.
Reliability coefficients are derived from correlating individual scores on the same test administered at different times.
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What is measurement in the context of the content provided?
What is measurement in the context of the content provided?
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Quota sampling requires predefined categories for sample selection.
Quota sampling requires predefined categories for sample selection.
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What is the formula to calculate the sample size (n)?
What is the formula to calculate the sample size (n)?
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What is Cochran’s sample size formula used for?
What is Cochran’s sample size formula used for?
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Descriptive statistics are used to ___________ quantitative data.
Descriptive statistics are used to ___________ quantitative data.
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The z-value for a 90% confidence level is 1.645.
The z-value for a 90% confidence level is 1.645.
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Match the following statistical terms with their functions:
Match the following statistical terms with their functions:
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What is the margin of error stated in the content?
What is the margin of error stated in the content?
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The adjusted sample size using Cochran’s formula was calculated to be _____ for a population of 500.
The adjusted sample size using Cochran’s formula was calculated to be _____ for a population of 500.
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Match the following methods of data collection with their descriptions:
Match the following methods of data collection with their descriptions:
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Which of the following is NOT a characteristic of a good questionnaire?
Which of the following is NOT a characteristic of a good questionnaire?
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The new sample size after adjustments was 59.97.
The new sample size after adjustments was 59.97.
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List one procedure for drawing a sample from the population.
List one procedure for drawing a sample from the population.
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Study Notes
RESEARCH METHODOLOGY
- Describes the step-by-step procedures researchers use in investigating a research problem
- Aims to discuss details about the implementation of a research study
- Explains how the research study will be carried out to answer research questions
DESCRIPTIVE RESEARCH DESIGNS
- Observation studies
- Correlational research
EXPERIMENTAL RESEARCH DESIGNS
-
Pre-experimental Design
- One-group pretest-posttest design
- Static group comparison
-
True experimental research design
- Posttest-only control group design
- Pretest-posttest control group design
- Solomon four-group design
- Quasi-experimental design
SAMPLING TECHNIQUES
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The selection of a sample is crucial as wrong sampling procedures can lead to invalid results
-
Each member of the population has a known probability of being selected in the sample for probability sampling
-
SIMPLE RANDOM SAMPLING
- Choosing sample members one by one
- Lottery Method: using a fishbowl
- Random Number Table: using a list of numbers
-
SYSTEMATIC RANDOM SAMPLING
- Considers every nth element of the population in the sample
-
STRATIFIED SAMPLING
- Dividing the population into subgroups (strata) sharing similar characteristics
- Random samples are taken from each stratum
-
CLUSTER SAMPLING
- Grouping randomly, members do not need to have the same characteristics
NONPROBABILITY SAMPLING
-
There is bias in selection and there is no known probability that one member will be included in the sample
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No randomization in the selection of sample members
-
CONVENIENCE SAMPLING
- Samples readily available to participate
-
PURPOSIVE SAMPLING
- Samples are selected based on the judgment of the researcher
-
SNOWBALL SAMPLING
- Each respondent recommends others
-
QUOTA SAMPLING
- Predefined control categories
POPULATION SIZE
- Total number of members in the population of interest
MARGIN OF ERROR
- Percentage describing how close survey results from a sample are to the true population value
CONFIDENCE LEVEL
- Percentage that if a survey is repeated many times, the results obtained would be the same
COCHRAN'S SAMPLE SIZE FORMULA
- Calculates the ideal sample size given precision, desired confidence level, and estimated proportion of the attribute to the population
COMPUTING SAMPLE SIZE
- Helps to answer problem statements and draw inferences about the population of interest
SAMPLE SIZE
- Number of samples
STEPS IN IDENTIFYING THE RESPONDENTS
- Describe the population of interest
- Describe the procedure for drawing the sample
- Explain the chosen procedure
- Describe relevant characteristics
METHODS OF DATA COLLECTION
- Data-gathering instruments
- Survey
- Selection of respondents
- Gather information about the populations
- Questionnaires
- No ambiguous content
- Completed within a reasonable time frame
- No typographical errors
- Procedures to be followed for interviewing
- In-person
- Telephone
- Online
- Mailed questionnaires
- Focus groups
- Observation
- Collect data by observing relationships
DATA ANALYSIS PLAN
- How you handle and present collected data
- Outline of statistical procedures
- Discussion based on research questions
DATA ORGANIZATION
- Plan for organizing and presenting survey or investigation results
- Determine data to collect
- Method for organizing and presenting data
RESEARCH INSTRUMENTS AND ANALYSIS OF DATA
- Tools used to collect, measure, and analyze variables in a research study
- Development of research instruments - Measuring constructs like intelligence, achievement, personality, motivation, attitudes, aptitudes, interests, and self-esteem
- Ensure collected data is relevant and sufficient
TYPES OF INSTRUMENTS
- COGNITIVE - intellectual processes like problem-solving, analysis, and reasoning
- APTITUDE - measures mental ability, for predicting future performance
- AFFECTIVE - assesses feelings, attitudes, beliefs, personality, and values
TYPES OF TESTS
-
ACHIEVEMENT - measures learned material
- Standardized tests and Researcher-made tests
- NORM-REFERENCED - compares an individual's performance to others
- CRITERION-REFERENCED - measures what an individual can do
- PERFORMANCE - measures what an individual can do (task)
-
APTITUDE - measures ability to learn
- Individual Aptitude Tests and Group Tests of Aptitude
QUESTIONNAIRES
- Set of questions to gather statistically significant information from respondents (for research study)
- Requirements:
- Easy-to-understand wording
- One answer per question
- Clear questionnaire design for optimal responses
- Include all possible responses
- Variability in responses
- Avoid social desirability bias
- Types of survey questions:
- Contingency, Matrix, Close-Ended (predefined responses), Dichotomous, Multiple Choice, Rating Scale, Checklist, Rank Order, Scaled (Likert, Semantic Differential scale)
OPEN-ENDED QUESTIONS
- No predefined options, respondents answer in their own words
DIRECT OBSERVATION
-
Observer acts as a recording device to document occurrences of behavior/characteristics
-
Devices used for observation:
- Checklist
- Rating scales
- Coding systems
VALIDITY AND RELIABILITY OF RESEARCH INSTRUMENTS
- Evidence collection for score-based interpretations
- Based on test content, relations to criterion
MEASUREMENT
- Process of assigning numerals to objects/events based on accepted rules
CONSTRUCT-RELATED EVIDENCE OF VALIDITY
- Ensuring the instrument measures the intended psychological variable
RELIABILITY COEFFICIENT
- Various coefficients derived from correlating individual scores
- Same test, different occasions, equivalent tests, subsets of items within a test
DATA ANALYSIS PROCEDURES
- Managing and handling quantitative data
- Descriptive statistics—organize, summarize, & describe data
- Inferential statistics—making inferences about the population based on sample data
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Description
Test your knowledge on research methodologies, including descriptive and experimental research designs. This quiz covers sampling techniques, observational studies, and the intricacies of implementing research studies effectively. Assess your understanding of how different designs influence research outcomes.