Podcast
Questions and Answers
What does reliability of an instrument refer to?
What does reliability of an instrument refer to?
- The consistency of the measures or results obtained from the instrument. (correct)
- The length of time it takes to administer the instrument.
- The cost-effectiveness of using the instrument.
- The accuracy of the instrument in measuring what it intends to measure.
Which type of reliability is assessed by administering the same test to the same group of respondents twice?
Which type of reliability is assessed by administering the same test to the same group of respondents twice?
- Equivalent Forms Reliability
- Split-half Reliability
- Test-retest Reliability (correct)
- Internal Consistency Reliability
What is assessed when establishing equivalent forms reliability?
What is assessed when establishing equivalent forms reliability?
- Administering two identical tests (except for wording) to the same group of respondents. (correct)
- Testing the same person twice with a large gap in time.
- Splitting one test into two halves and comparing the scores.
- Administering two different tests to the different group of respondents.
Which of the following describes internal consistency reliability?
Which of the following describes internal consistency reliability?
Which of the following is a method used to measure internal consistency reliability?
Which of the following is a method used to measure internal consistency reliability?
What is the importance of a concise research instrument?
What is the importance of a concise research instrument?
Why should questions in a research instrument be presented sequentially?
Why should questions in a research instrument be presented sequentially?
What does it mean for a research instrument to be valid and reliable?
What does it mean for a research instrument to be valid and reliable?
What is the first step a researcher should take before crafting a research instrument for quantitative research?
What is the first step a researcher should take before crafting a research instrument for quantitative research?
Which of the following is the most common scale used in quantitative research?
Which of the following is the most common scale used in quantitative research?
What is the primary purpose of descriptive statistical techniques in data analysis?
What is the primary purpose of descriptive statistical techniques in data analysis?
What are the key factors to consider when choosing between parametric and non-parametric tests?
What are the key factors to consider when choosing between parametric and non-parametric tests?
A dataset does not follow normal distribution. What type of statistical test is generally more appropriate?
A dataset does not follow normal distribution. What type of statistical test is generally more appropriate?
If a researcher is examining the relationship between two variables, what type of statistical analysis is being used?
If a researcher is examining the relationship between two variables, what type of statistical analysis is being used?
For a study with small sample size (less than 30 per group), which type of test is generally recommended?
For a study with small sample size (less than 30 per group), which type of test is generally recommended?
Which sampling method involves dividing the population into subgroups or clusters?
Which sampling method involves dividing the population into subgroups or clusters?
What is the primary challenge that cluster sampling aims to address in large-scale studies?
What is the primary challenge that cluster sampling aims to address in large-scale studies?
In cluster sampling, what characteristics should the clusters ideally possess?
In cluster sampling, what characteristics should the clusters ideally possess?
In systematic sampling, how is the interval (n) determined?
In systematic sampling, how is the interval (n) determined?
What is selected at a predetermined interval in systematic sampling?
What is selected at a predetermined interval in systematic sampling?
If a population size is 100 and the desired sample size is 20, what is the interval in systematic sampling?
If a population size is 100 and the desired sample size is 20, what is the interval in systematic sampling?
Which of the following is a key characteristic of systematic sampling?
Which of the following is a key characteristic of systematic sampling?
What does a valid research instrument measure?
What does a valid research instrument measure?
Which of the following sampling procedures involves grouping the population into subgroups?
Which of the following sampling procedures involves grouping the population into subgroups?
Face validity is also known as what type of validity?
Face validity is also known as what type of validity?
Which type of validity is determined by experts?
Which type of validity is determined by experts?
What does construct validity refer to?
What does construct validity refer to?
If an instrument produces results similar to those from existing, validated tests, what type of validity does it have?
If an instrument produces results similar to those from existing, validated tests, what type of validity does it have?
What is the primary purpose of data analysis in research?
What is the primary purpose of data analysis in research?
What should be considered when planning data analysis in quantitative research?
What should be considered when planning data analysis in quantitative research?
In quantitative research, how is numerical data typically approached for analysis?
In quantitative research, how is numerical data typically approached for analysis?
What does the statistical treatment in quantitative research make explicit?
What does the statistical treatment in quantitative research make explicit?
When choosing statistical techniques in quantitative research, what should be considered?
When choosing statistical techniques in quantitative research, what should be considered?
What is the first step in determining the sample size?
What is the first step in determining the sample size?
What does the term 'population' refer to in research?
What does the term 'population' refer to in research?
What is the main difference between a target population and an accessible population?
What is the main difference between a target population and an accessible population?
What does 'sampling' refer to in research?
What does 'sampling' refer to in research?
What is a 'sample' in research?
What is a 'sample' in research?
Why is it important for a sample to be representative of the population?
Why is it important for a sample to be representative of the population?
In general, what is the relationship between sample size and accuracy of representation?
In general, what is the relationship between sample size and accuracy of representation?
The sampling procedure should be aligned to what?
The sampling procedure should be aligned to what?
What is the primary characteristic of quantitative data?
What is the primary characteristic of quantitative data?
Which data gathering technique involves gathering information using the senses?
Which data gathering technique involves gathering information using the senses?
What is the main method of data collection in a survey?
What is the main method of data collection in a survey?
In which research design is treatment or intervention used?
In which research design is treatment or intervention used?
What is the first activity in the 'Before' phase of data collection?
What is the first activity in the 'Before' phase of data collection?
Which activity is part of the 'During' phase of data collection?
Which activity is part of the 'During' phase of data collection?
What action is performed in the 'After' phase of data collection?
What action is performed in the 'After' phase of data collection?
What is the immediate next step after summarizing data during the 'After' phase?
What is the immediate next step after summarizing data during the 'After' phase?
What is the suggested minimum sample size for an ex post facto research design?
What is the suggested minimum sample size for an ex post facto research design?
What is the suggested sample size for a survey research design?
What is the suggested sample size for a survey research design?
What does statistical power refer to in research?
What does statistical power refer to in research?
What is the ideal level of statistical power?
What is the ideal level of statistical power?
What does the effect size indicate?
What does the effect size indicate?
In simple random sampling, what chance does each member of the population have of being selected?
In simple random sampling, what chance does each member of the population have of being selected?
What is a key characteristic of stratified random sampling?
What is a key characteristic of stratified random sampling?
In proportional stratified sampling, what is the first step after identifying subgroups?
In proportional stratified sampling, what is the first step after identifying subgroups?
What is the purpose of a research design in quantitative research?
What is the purpose of a research design in quantitative research?
Which type of quantitative research design is used when little is known about a research problem?
Which type of quantitative research design is used when little is known about a research problem?
What is the main goal of correlational research?
What is the main goal of correlational research?
Which research design is used when the researcher lacks control over the variables?
Which research design is used when the researcher lacks control over the variables?
In which type of research design are participants assigned to pre-existing groups, limiting the conclusions that can be drawn?
In which type of research design are participants assigned to pre-existing groups, limiting the conclusions that can be drawn?
Which research design is considered a 'true' experimental design?
Which research design is considered a 'true' experimental design?
Which quantitative research design focuses on observing and recording a phenomenon as it occurs?
Which quantitative research design focuses on observing and recording a phenomenon as it occurs?
Which type of research design attempts to establish a causal link between variables, but lacks random assignment?
Which type of research design attempts to establish a causal link between variables, but lacks random assignment?
Flashcards
Reliability
Reliability
The consistency of measures or results from an instrument.
Test-retest Reliability
Test-retest Reliability
Consistency measured by giving the same test twice to the same group.
Equivalent Forms Reliability
Equivalent Forms Reliability
Reliability determined by administering two similar tests to the same group.
Internal Consistency Reliability
Internal Consistency Reliability
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Methods for Internal Consistency
Methods for Internal Consistency
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Data Analysis Planning
Data Analysis Planning
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Descriptive Statistical Techniques
Descriptive Statistical Techniques
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Parametric Tests
Parametric Tests
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Non-Parametric Tests
Non-Parametric Tests
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Scale of Measurement
Scale of Measurement
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Concise Research Instrument
Concise Research Instrument
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Sequential Questioning
Sequential Questioning
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Validity and Reliability
Validity and Reliability
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Ways to Develop Instruments
Ways to Develop Instruments
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Likert Scale
Likert Scale
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Data Analysis
Data Analysis
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Quantitative Research
Quantitative Research
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Statistical Treatment
Statistical Treatment
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Hypothesis in Research
Hypothesis in Research
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Pearson's r
Pearson's r
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Cluster Sampling
Cluster Sampling
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Purpose of Cluster Sampling
Purpose of Cluster Sampling
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Selection of Clusters
Selection of Clusters
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Example of Cluster Sampling
Example of Cluster Sampling
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Systematic Sampling
Systematic Sampling
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Finding the Interval
Finding the Interval
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Efficiency of Systematic Sampling
Efficiency of Systematic Sampling
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Cluster vs Systematic Sampling
Cluster vs Systematic Sampling
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Semantic Differential
Semantic Differential
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Validity
Validity
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Face Validity
Face Validity
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Content Validity
Content Validity
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Construct Validity
Construct Validity
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Sampling Procedure
Sampling Procedure
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Population
Population
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Sample
Sample
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Target Population
Target Population
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Accessible Population
Accessible Population
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Representative Sample
Representative Sample
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Sample Size
Sample Size
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Generalizability
Generalizability
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Quantitative Data
Quantitative Data
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Observation Technique
Observation Technique
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Survey Method
Survey Method
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Experiment Design
Experiment Design
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Before Phase Activities
Before Phase Activities
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During Phase Activities
During Phase Activities
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After Phase Activities
After Phase Activities
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Qualitative Data in Quantitative Research
Qualitative Data in Quantitative Research
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Sample Size for Survey
Sample Size for Survey
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Sample Size for Correlational Research
Sample Size for Correlational Research
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Sample Size for Experimental Research
Sample Size for Experimental Research
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Statistical Power
Statistical Power
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Effect Size
Effect Size
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Simple Random Sampling
Simple Random Sampling
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Stratified Random Sampling
Stratified Random Sampling
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Proportional Stratified Sampling
Proportional Stratified Sampling
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Quantitative Research Designs
Quantitative Research Designs
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Descriptive Research
Descriptive Research
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Correlational Research
Correlational Research
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Ex Post Facto Research
Ex Post Facto Research
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Quasi-Experimental Research
Quasi-Experimental Research
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Experimental Research
Experimental Research
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Research Design Framework
Research Design Framework
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Numerical Analysis
Numerical Analysis
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Study Notes
Reliability of Instrument
- Reliability refers to the consistency of the measures or results of the instrument.
- Test-retest Reliability: Achieved by giving the same test to the same group of respondents twice. The consistency of the two scores will be checked.
- Equivalent Forms Reliability: Established by administering two identical tests except for wordings to the same group of respondents.
- Internal Consistency Reliability: Determines how well the items measure the same construct. It is reasonable that when a respondent gets a high score in one item, he will also get one in similar items. There are three ways to measure the internal consistency; through the split-half coefficient, Cronbach's alpha, and Kuder-Richardson formula.
Activity 1: Qualify and Rate the Instrument
- Directions: Look for sample research instruments from previously conducted research. Rate it on a scale of 1 to 5 (1 = lowest, 5 = highest) based on the criteria given. Then justify your rating.
- Sample Instrument: provide a title of the instrument if possible
- Purpose of the Research
- Number of Items
- Criteria for Evaluation of Instrument
- Concise
- Sequential
- Valid and Reliable
- Easily Tabulated
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