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Questions and Answers
Which student has the highest average score across all subjects?
Which student has the highest average score across all subjects?
In which subject does Bob perform the best?
In which subject does Bob perform the best?
Which statistical technique is appropriate for finding relationships between categorical variables?
Which statistical technique is appropriate for finding relationships between categorical variables?
Which subject received the highest mean score based on the scores provided?
Which subject received the highest mean score based on the scores provided?
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Which subject got the lowest mean score based on the scores provided?
Which subject got the lowest mean score based on the scores provided?
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What does a negative relationship suggest in a study about social media hours and mental health scores?
What does a negative relationship suggest in a study about social media hours and mental health scores?
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In what situation would Researchers favor using Spearman Rho over Pearson Correlation?
In what situation would Researchers favor using Spearman Rho over Pearson Correlation?
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What is the implication of a research study's conclusions?
What is the implication of a research study's conclusions?
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What type of data do close-ended questionnaires primarily yield?
What type of data do close-ended questionnaires primarily yield?
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What is a key purpose of writing the background information in the research intervention process?
What is a key purpose of writing the background information in the research intervention process?
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Which type of t-test is appropriate for comparing the means of two non-independent samples?
Which type of t-test is appropriate for comparing the means of two non-independent samples?
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What is the function of a pie chart in data representation?
What is the function of a pie chart in data representation?
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Which analysis is used when examining the relationship between two variables?
Which analysis is used when examining the relationship between two variables?
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What does a null hypothesis generally predict?
What does a null hypothesis generally predict?
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What is required for an experimental study according to Fraenkel?
What is required for an experimental study according to Fraenkel?
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When using ANOVA, what can be determined?
When using ANOVA, what can be determined?
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What does a comparative study typically involve?
What does a comparative study typically involve?
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Which research design is most appropriate for determining respondents' perceptions about a program?
Which research design is most appropriate for determining respondents' perceptions about a program?
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What defines a purposive sampling procedure?
What defines a purposive sampling procedure?
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In which scale do numbers represent equal distances from a known zero point?
In which scale do numbers represent equal distances from a known zero point?
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What is a primary purpose of a survey in research?
What is a primary purpose of a survey in research?
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Study Notes
Practical Research 2 - Second Quarter Exam Review
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Research Designs:
- Comparative: Compares two or more groups at a single point in time.
- Descriptive (Non-Experimental): Used to understand perceptions of a program.
- Experimental: Manipulates variables to determine cause-and-effect.
- Correlational: Identifies relationships between variables.
- Purposive: Selects respondents based on specific knowledge or enthusiasm.
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Types of Variables:
- Ordinal: Categorical variables with a natural order.
- Ratio: Represents equal intervals with a true zero point.
- Interval: Represents equal intervals but without a true zero point.
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Data Collection Methods:
- Questionnaire: A set of questions for structured responses.
- Survey: Collecting information through interviews or questionnaires.
- Structured Observation: Standardized observation, leading to quantitative data.
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Research Concepts:
- Population: The entire group of individuals with a shared characteristic.
- Sample: A subgroup of the population.
- Null Hypothesis: Predicts no relationship or significant difference.
- Intervention: A deliberate action in experimental research.
- Independent Samples t-test: Compares means of a variable for two independent groups.
- ANOVA: A statistical test for comparing means of a variable across more than two groups.
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Charts and Graphs:
- Pie Chart: Displays proportions of a whole.
- Bivariate Data: Data involving two variables (e.g., height and age).
- Univariate Analysis: Examines characteristics of a single variable.
Student Performance Analysis
- Student Performance Table: Includes math, science, English, and history scores for multiple students.
- Highest Average: The student with the highest average score across all subjects is to be determined from the data provided.
- Best Subject: Bob's best subject and his performance compared to others in that subject should be determined from the data.
- Mean Scores: The mean (average) score for each subject should be determined from the table to identify the subject with the highest and lowest average.
Study on Social Media and Mental Health
- Negative Relationship: A study potentially finding a negative relationship between social media use and mental health, meaning more hours spent on social media could be associated with lower mental health scores.
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Statistical Techniques:
- Person r: Appropriate for measuring the linear relationship between two variables using numerical data.
- Spearman Rho: Appropriate if using ordinal data.
- Conclusions and Recommendations: Including elements such as a summary of findings, suggested applications, and/or limitations of the study, should be present in a well-structured paper.
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Description
Prepare for your Second Quarter Exam in Practical Research 2 with this comprehensive review. Explore various research designs, types of variables, and data collection methods essential for your understanding of research principles. Test your knowledge and readiness for the upcoming exam.
