1.
The most basic distinction between types of data is that some data are quantitative while other data are qualitative. Quantitative data generally consists of:
Correct Answer
A. Numbers
Explanation
Quantitative data refers to information that can be measured or expressed numerically. It includes numbers, such as measurements, counts, or ratings. In this case, the answer "Numbers" correctly identifies quantitative data as one of the types of data. Quantitative data can be analyzed using mathematical and statistical methods to draw conclusions and make predictions. It is different from qualitative data, which is descriptive and non-numerical in nature.
2.
Qualitative data generally can include:
Correct Answer
C. Text, pictures, videos, sound recordings.
Explanation
Qualitative data refers to non-numerical data that is collected through observations, interviews, or open-ended questions. It focuses on capturing the richness and depth of information rather than quantifying it. The answer "Text, pictures, videos, sound recordings" aligns with this definition as these forms of data capture subjective experiences, opinions, and behaviors. They provide descriptive and contextual information that cannot be easily summarized with numbers.
3.
The most fundamental difference between qualitative data and quantitative data is that:
Correct Answer
A. The type of judgment that is used to make meaning of the data, and how the data are manipulated.
Explanation
Qualitative data and quantitative data differ in terms of the type of judgment used to interpret the data and how the data are manipulated. Qualitative data involves subjective judgment and interpretation, focusing on understanding the underlying meanings, themes, and perspectives. On the other hand, quantitative data involves objective judgment and statistical analysis, focusing on numerical measurements and patterns. The way these two types of data are analyzed and manipulated also differs, with qualitative data often using methods like coding and thematic analysis, while quantitative data involves statistical tests and calculations.
4.
Considering the way researchers handle data, it is helpful to remember that:
Correct Answer
E. Although some data are collected quantitatively, there are many qualitative judgments that go into how those responses are collected.
Explanation
The answer is explaining that even though some data are collected quantitatively, there are still qualitative judgments involved in how those responses are collected. This means that even when researchers use quantitative data, there are subjective decisions and qualitative aspects involved in the process. Therefore, the statement is highlighting the fact that qualitative judgments are present in the collection of quantitative data.
5.
The "Levels of Measurement" are typically placed in a sequence in which higher levels contain the attributes of the lower levels but add some attributes. At the lowest level, it is not even meaningful to average the numbers, while at the highest level, it is possible to use inferential statistics. The sequence of "levels of measurement" from lowest to highest is:
Correct Answer
A. (lowest) nominal-->ordinal-->interval-->ratio (highest)
Explanation
The correct answer is the first option, "nominal-->ordinal-->interval-->ratio." This sequence represents the correct order of levels of measurement from lowest to highest. Nominal level measurement involves categorizing data into distinct groups or categories. Ordinal level measurement involves arranging data into a specific order or ranking. Interval level measurement involves measuring data on a scale with equal intervals between values. Ratio level measurement is the highest level and includes all the attributes of the previous levels, but also has a true zero point and allows for the use of mathematical operations like multiplication and division.
6.
In research, data are generally being collected that are meant to describe, measure, or otherwise characterize a construct. A construct is most correctly described as:
Correct Answer
D. The theoretical idea or concept that is being described or analyzed in the process of research.
Explanation
A construct refers to the theoretical idea or concept that is being described or analyzed in the process of research. It represents an abstract concept that researchers aim to measure or understand through data collection and analysis. Constructs can be things like intelligence, motivation, or personality traits, and they are often defined and operationalized in research studies to guide the data collection process. By focusing on constructs, researchers can gain insights into the underlying theories or concepts they are investigating and draw meaningful conclusions from the data they collect.
7.
In research, the term validity refers to:
Correct Answer
C. The accuracy of the measures used.
Explanation
In research, validity refers to how well a test or tool measures what it is supposed to measure. It indicates the accuracy and appropriateness of the methods and techniques used to capture data. If a study's findings accurately reflect the real-world scenarios they aim to represent, the study is considered to have high validity. Validity is crucial for ensuring that conclusions drawn from the research are trustworthy and based on sound evidence. This is distinct from reliability, which refers to the consistency of the measure across different occasions or samples.
8.
What is the primary advantage of using mixed-methods research?
Correct Answer
C. It combines the depth of qualitative research with the breadth of quantitative research.
Explanation
Mixed-methods research combines qualitative and quantitative research approaches to take advantage of both. This method provides the depth and detail of qualitative data while also offering the generalizability and statistical power of quantitative data. By integrating both approaches, researchers can explore complex phenomena more effectively than using either method alone, leading to more comprehensive insights and robust conclusions.
9.
What does triangulation in the context of research methods refer to?
Correct Answer
C. Employing multiple methods or data sources to cross-check and validate findings.
Explanation
Triangulation in research refers to the technique of using multiple data sources, methodologies, or theories to cross-verify the data and findings. This approach enhances the credibility and validity of the research outcomes by confirming that the results are consistent across different methods or perspectives. Triangulation helps identify any biases or discrepancies and provides a more detailed and balanced view of the researched topic.
10.
In qualitative research, what role does member checking play?
Correct Answer
C. It serves as a method for researchers to ensure the accuracy of their findings by involving participants in the review process.
Explanation
Member checking is a valuable technique in qualitative research where researchers return the findings or results to the participants to verify the accuracy and resonance of the reported results with their experiences. This process ensures that the interpretations and conclusions drawn by the researcher truly reflect the participants' perspectives and experiences, thereby enhancing the credibility and validity of the data. It helps in making the research more participative and grounded in actual participant responses.
11.
When numbers are used in a study as labels--in place of names--the numbers are said to be at a level of a measurement called ______ data.
Correct Answer
nominal
Explanation
When numbers are used merely as labels in a study, such as numbering football players with no implication of rank or score, or when assigning numbers to categories (like 1 for male and 2 for female), this is known as nominal data. Nominal data represents the most basic level of measurement where the numbers serve only to categorize or identify different groups or objects and do not have any quantitative significance. This type of data does not imply any order or spacing between the categories represented.
12.
When the numbers that are collected as data in research have a true "0" point, such the numbers can be correctly manipulated mathematically; the data are said to be at a level of a measurement called _____ data.
Correct Answer
ratio
Explanation
When numbers collected in research have a true "0" point, allowing for the representation of none of the variable being measured, and these numbers can be correctly manipulated mathematically, the data are referred to as being at the ratio level of measurement. Ratio data is the highest level of measurement and includes attributes of nominal, ordinal, and interval data, with the addition of a meaningful zero value. This allows for the calculation of ratios, hence the name, making operations like multiplication and division meaningful. Examples include weight, height, and distance, where zero signifies none of the property being measured.
13.
The approximate truth of propositions, inferences, or conclusions in research is referred to as ________.
Correct Answer
validity
Explanation
In research, the term "validity" refers to the approximate truth of propositions, inferences, or conclusions. It assesses how well a test or experiment measures up to its claims. Validity is crucial because it helps determine whether the conclusions drawn from the study can be trusted as a true reflection of what is being studied. If the validity of a study is high, it means that the findings accurately represent the phenomena or concepts they are intended to reflect, allowing for more confident generalizations and applications of the results.
14.
Which of the following research scenarios is best suited for a qualitative approach?
Correct Answer
B. Investigating the impact of social media on teenagers' self-esteem.
Explanation
Qualitative research focuses on exploring complex social phenomena and understanding subjective experiences. Investigating the impact of social media on teenagers' self-esteem would involve gathering rich, in-depth data through interviews, focus groups, or observations to understand the nuanced ways social media influences how teenagers perceive themselves. The other options are better suited for quantitative methods, which focus on measuring and quantifying data.
15.
Which data collection method is commonly used in qualitative research?
Correct Answer
B. Experiments with controlled variables.
Explanation
In-depth interviews allow researchers to explore participants' perspectives and experiences in detail. Open-ended questions encourage participants to share their thoughts and feelings in their own words, providing rich qualitative data. Surveys with closed-ended questions, experiments with controlled variables, and statistical analysis are more common in quantitative research, which focuses on measuring and quantifying data.