Intro to Data Science - Crash Course for Beginners
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Date: 2022-03-14
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Comments and reviews: 10
Anderson
Quantitative Research Methodologies Q&A-
1.-Evaluate the scope of quantitative research methodology comparing each method and critique each technique, model, metaphor, and paradigm. 200 words-
Ethnographic studies are commonly used in research methods. The model of ethnographic studies is based on the researcher following participants or subjects into their culture to gain more insight into cultural issues. A metaphor of an ethnographic study is following customers to their home to understand why they purchase a given product and not another. The three paradigms of ethnographic studies include behaviorist, semiotic, and holistic styles. Interviews and surveys are the specific techniques embraced in ethnographic studies (Park, & Park, 2016).-
The narrative method includes the use of two main techniques; interviews or collecting information from person-s documents that include diaries, memoirs, and other personal encounters narrative documents. The narrative is selected carefully to be a metaphor of the whole population, for instance, someone narrating how a calamity strikes their community might be narrative that can tell what the whole community experienced. The models of narratives can be spoken, written, or visually represented. The paradigm is that what one person experienced does not differ significantly from what the rest of the community experienced concerning the specific problem being analyzed (Park, & Park, 2016).-
The third methodology is the phenomenological study which embraces multiple techniques that include interviews, surveys, literature review, and others to describe phenomena. The main models embraced in the phenomenological study include purposive sampling and systematic sampling. The metaphor of this method is that the collection of data from varying sources will give a united theme and data relevant to understanding the phenomena. The paradigm, hereby, is that the collected data about a certain phenomenon will show common features about the phenomena (Park, & Park, 2016).-
The fourth method is grounded theory. It is closely associated with the phenomenological study in that it embraces the use of varying sources of information to develop a theme and collect data about phenomena. Its techniques, models, metaphor, and paradigms are similar to those of the phenomenological study (described in the paragraph above), but unlike phenomenological studies that look into the essence of an event or activity, the grounded theory seeks to give theories or explanations behind an occurrence or event (Park, & Park, 2016).-
The fifth quantitative research methodology is the case study method. This method looks into occurrences as they affected a subject or few subjects. The techniques in this method include a single subject case study or multiple subjects- case studies. The models of inquiry may include interviews, observations, or literature review for past events case studies. This model has a paradigm that what happens to one person applies to other people with a similar problem in society (Park, & Park, 2016).-
2.-Select the best quantitative method and assess the strengths and weaknesses of that selected method defending why the selected quantitative method is the best. 80 words-
The best qualitative method in my opinion is an ethnographic study. Given my interest in social science, I find that understanding the behavior of a given group through interacting with the group is the best model to use. Moreover, unlike case study design this method allows for interaction with a larger number of participants or subjects with similar concerns. Moreover, it is a method that develops a hypothesis that can be approved or disapproved by the research, unlike the phenomenological and grounded theory designs that look for common themes during the active research. One of the weaknesses of ethnographic studies is that it can consume a huge amount of time. The researcher can also be faced with great challenges fitting in with a new culture and gaining their trust after s/he declares interest to understand their cultural elements.-
3.-Compare various quantitative methods and how each method enables researchers to design the correct series of questions and eventually hypotheses to prove the theories. 120 words -
The ethnographic study follows researchers into their cultural roots to understand their behavior. It is appropriate for cultural studies that aim to understand behavior such as consumer behavior. The narrative aims at gaining opinions from specific subjects, or their encounters concerning a certain problem. It closely relates to the case study design which also focuses on individual-s stories. These two methods can yield results in understanding people-s reactions to certain societal problems, for instance, the experiences that parents undergo after losing a job. The phonological studies and grounded theory methodologies are similar in many aspects including the fact that they seek a common theme from multiple sources of information such as interviews, literature, surveys, and other sources. However, the grounded theory seeks to explain or develop a theory describing a certain societal concern, while the phenomenological study looks into the essence of the societal concern of interest. -
The ethnographic study, case study, and narrative begin with preparations that include the identification of the societal problem, development of research questions, and a hypothesis that the study will either approve or disapprove. The phenomenological study and the grounded theory designs, on the other hand, have a planning process that only includes the identification of the problem and sources from which information will be obtained. These two quantitative methodologies develop a common theme in the field of study, which gives research questions to be responded to and maybe a hypothesis which is not mandatorily essential. -
4.-Recommend best methods to solve different types of analysis and provide a table that outlines each method, what type variables are used, best applications, and what findings to expect. 100 words-
-Descriptive analysis-Predictive analysis-Diagnostic analysis-Prescriptive Analysis-
Recommended Method-Case study, cross-sectional research, surveys, naturalistic observation, archival research, and longitudinal research-Analytics techniques such as regression models, time series, and others. -Case studies, questionnaires, interviews, surveys, and observations -Mathematical learning and machine learning methods-
Types of Variables-Descriptive variables such as -agree or disagree--Predictor variables; variables linked with certain outcomes such as regression variables-Descriptive variables such as a scale of 0-10 in rating pain-Both predictor and descriptive variables-
Best Application-Understanding phenomena-Extrapolation of past and current events into uncertain or future predictions-Understanding personal outcomes such as feelings, opinions, and others-Big data analytics essential in making an informed recommendation-
Expected Findings-More understanding of the phenomena that has already occurred or is occurring-Forecasts of what is to happen-An understanding of personal outcomes-Recommendations for courses of action
reply
Quantitative Research Methodologies Q&A-
1.-Evaluate the scope of quantitative research methodology comparing each method and critique each technique, model, metaphor, and paradigm. 200 words-
Ethnographic studies are commonly used in research methods. The model of ethnographic studies is based on the researcher following participants or subjects into their culture to gain more insight into cultural issues. A metaphor of an ethnographic study is following customers to their home to understand why they purchase a given product and not another. The three paradigms of ethnographic studies include behaviorist, semiotic, and holistic styles. Interviews and surveys are the specific techniques embraced in ethnographic studies (Park, & Park, 2016).-
The narrative method includes the use of two main techniques; interviews or collecting information from person-s documents that include diaries, memoirs, and other personal encounters narrative documents. The narrative is selected carefully to be a metaphor of the whole population, for instance, someone narrating how a calamity strikes their community might be narrative that can tell what the whole community experienced. The models of narratives can be spoken, written, or visually represented. The paradigm is that what one person experienced does not differ significantly from what the rest of the community experienced concerning the specific problem being analyzed (Park, & Park, 2016).-
The third methodology is the phenomenological study which embraces multiple techniques that include interviews, surveys, literature review, and others to describe phenomena. The main models embraced in the phenomenological study include purposive sampling and systematic sampling. The metaphor of this method is that the collection of data from varying sources will give a united theme and data relevant to understanding the phenomena. The paradigm, hereby, is that the collected data about a certain phenomenon will show common features about the phenomena (Park, & Park, 2016).-
The fourth method is grounded theory. It is closely associated with the phenomenological study in that it embraces the use of varying sources of information to develop a theme and collect data about phenomena. Its techniques, models, metaphor, and paradigms are similar to those of the phenomenological study (described in the paragraph above), but unlike phenomenological studies that look into the essence of an event or activity, the grounded theory seeks to give theories or explanations behind an occurrence or event (Park, & Park, 2016).-
The fifth quantitative research methodology is the case study method. This method looks into occurrences as they affected a subject or few subjects. The techniques in this method include a single subject case study or multiple subjects- case studies. The models of inquiry may include interviews, observations, or literature review for past events case studies. This model has a paradigm that what happens to one person applies to other people with a similar problem in society (Park, & Park, 2016).-
2.-Select the best quantitative method and assess the strengths and weaknesses of that selected method defending why the selected quantitative method is the best. 80 words-
The best qualitative method in my opinion is an ethnographic study. Given my interest in social science, I find that understanding the behavior of a given group through interacting with the group is the best model to use. Moreover, unlike case study design this method allows for interaction with a larger number of participants or subjects with similar concerns. Moreover, it is a method that develops a hypothesis that can be approved or disapproved by the research, unlike the phenomenological and grounded theory designs that look for common themes during the active research. One of the weaknesses of ethnographic studies is that it can consume a huge amount of time. The researcher can also be faced with great challenges fitting in with a new culture and gaining their trust after s/he declares interest to understand their cultural elements.-
3.-Compare various quantitative methods and how each method enables researchers to design the correct series of questions and eventually hypotheses to prove the theories. 120 words -
The ethnographic study follows researchers into their cultural roots to understand their behavior. It is appropriate for cultural studies that aim to understand behavior such as consumer behavior. The narrative aims at gaining opinions from specific subjects, or their encounters concerning a certain problem. It closely relates to the case study design which also focuses on individual-s stories. These two methods can yield results in understanding people-s reactions to certain societal problems, for instance, the experiences that parents undergo after losing a job. The phonological studies and grounded theory methodologies are similar in many aspects including the fact that they seek a common theme from multiple sources of information such as interviews, literature, surveys, and other sources. However, the grounded theory seeks to explain or develop a theory describing a certain societal concern, while the phenomenological study looks into the essence of the societal concern of interest. -
The ethnographic study, case study, and narrative begin with preparations that include the identification of the societal problem, development of research questions, and a hypothesis that the study will either approve or disapprove. The phenomenological study and the grounded theory designs, on the other hand, have a planning process that only includes the identification of the problem and sources from which information will be obtained. These two quantitative methodologies develop a common theme in the field of study, which gives research questions to be responded to and maybe a hypothesis which is not mandatorily essential. -
4.-Recommend best methods to solve different types of analysis and provide a table that outlines each method, what type variables are used, best applications, and what findings to expect. 100 words-
-Descriptive analysis-Predictive analysis-Diagnostic analysis-Prescriptive Analysis-
Recommended Method-Case study, cross-sectional research, surveys, naturalistic observation, archival research, and longitudinal research-Analytics techniques such as regression models, time series, and others. -Case studies, questionnaires, interviews, surveys, and observations -Mathematical learning and machine learning methods-
Types of Variables-Descriptive variables such as -agree or disagree--Predictor variables; variables linked with certain outcomes such as regression variables-Descriptive variables such as a scale of 0-10 in rating pain-Both predictor and descriptive variables-
Best Application-Understanding phenomena-Extrapolation of past and current events into uncertain or future predictions-Understanding personal outcomes such as feelings, opinions, and others-Big data analytics essential in making an informed recommendation-
Expected Findings-More understanding of the phenomena that has already occurred or is occurring-Forecasts of what is to happen-An understanding of personal outcomes-Recommendations for courses of action
reply
Anderson
Quantitative Research Methodologies Q&A-
1.-Evaluate the scope of quantitative research methodology comparing each method and critique each technique, model, metaphor, and paradigm. 200 words-
Ethnographic studies are commonly used in research methods. The model of ethnographic studies is based on the researcher following participants or subjects into their culture to gain more insight into cultural issues. A metaphor of an ethnographic study is following customers to their home to understand why they purchase a given product and not another. The three paradigms of ethnographic studies include behaviorist, semiotic, and holistic styles. Interviews and surveys are the specific techniques embraced in ethnographic studies (Park, & Park, 2016).-
The narrative method includes the use of two main techniques; interviews or collecting information from person-s documents that include diaries, memoirs, and other personal encounters narrative documents. The narrative is selected carefully to be a metaphor of the whole population, for instance, someone narrating how a calamity strikes their community might be narrative that can tell what the whole community experienced. The models of narratives can be spoken, written, or visually represented. The paradigm is that what one person experienced does not differ significantly from what the rest of the community experienced concerning the specific problem being analyzed (Park, & Park, 2016).-
The third methodology is the phenomenological study which embraces multiple techniques that include interviews, surveys, literature review, and others to describe phenomena. The main models embraced in the phenomenological study include purposive sampling and systematic sampling. The metaphor of this method is that the collection of data from varying sources will give a united theme and data relevant to understanding the phenomena. The paradigm, hereby, is that the collected data about a certain phenomenon will show common features about the phenomena (Park, & Park, 2016).-
The fourth method is grounded theory. It is closely associated with the phenomenological study in that it embraces the use of varying sources of information to develop a theme and collect data about phenomena. Its techniques, models, metaphor, and paradigms are similar to those of the phenomenological study (described in the paragraph above), but unlike phenomenological studies that look into the essence of an event or activity, the grounded theory seeks to give theories or explanations behind an occurrence or event (Park, & Park, 2016).-
The fifth quantitative research methodology is the case study method. This method looks into occurrences as they affected a subject or few subjects. The techniques in this method include a single subject case study or multiple subjects- case studies. The models of inquiry may include interviews, observations, or literature review for past events case studies. This model has a paradigm that what happens to one person applies to other people with a similar problem in society (Park, & Park, 2016).-
2.-Select the best quantitative method and assess the strengths and weaknesses of that selected method defending why the selected quantitative method is the best. 80 words-
The best qualitative method in my opinion is an ethnographic study. Given my interest in social science, I find that understanding the behavior of a given group through interacting with the group is the best model to use. Moreover, unlike case study design this method allows for interaction with a larger number of participants or subjects with similar concerns. Moreover, it is a method that develops a hypothesis that can be approved or disapproved by the research, unlike the phenomenological and grounded theory designs that look for common themes during the active research. One of the weaknesses of ethnographic studies is that it can consume a huge amount of time. The researcher can also be faced with great challenges fitting in with a new culture and gaining their trust after s/he declares interest to understand their cultural elements.-
3.-Compare various quantitative methods and how each method enables researchers to design the correct series of questions and eventually hypotheses to prove the theories. 120 words -
The ethnographic study follows researchers into their cultural roots to understand their behavior. It is appropriate for cultural studies that aim to understand behavior such as consumer behavior. The narrative aims at gaining opinions from specific subjects, or their encounters concerning a certain problem. It closely relates to the case study design which also focuses on individual-s stories. These two methods can yield results in understanding people-s reactions to certain societal problems, for instance, the experiences that parents undergo after losing a job. The phonological studies and grounded theory methodologies are similar in many aspects including the fact that they seek a common theme from multiple sources of information such as interviews, literature, surveys, and other sources. However, the grounded theory seeks to explain or develop a theory describing a certain societal concern, while the phenomenological study looks into the essence of the societal concern of interest. -
The ethnographic study, case study, and narrative begin with preparations that include the identification of the societal problem, development of research questions, and a hypothesis that the study will either approve or disapprove. The phenomenological study and the grounded theory designs, on the other hand, have a planning process that only includes the identification of the problem and sources from which information will be obtained. These two quantitative methodologies develop a common theme in the field of study, which gives research questions to be responded to and maybe a hypothesis which is not mandatorily essential.
reply
Quantitative Research Methodologies Q&A-
1.-Evaluate the scope of quantitative research methodology comparing each method and critique each technique, model, metaphor, and paradigm. 200 words-
Ethnographic studies are commonly used in research methods. The model of ethnographic studies is based on the researcher following participants or subjects into their culture to gain more insight into cultural issues. A metaphor of an ethnographic study is following customers to their home to understand why they purchase a given product and not another. The three paradigms of ethnographic studies include behaviorist, semiotic, and holistic styles. Interviews and surveys are the specific techniques embraced in ethnographic studies (Park, & Park, 2016).-
The narrative method includes the use of two main techniques; interviews or collecting information from person-s documents that include diaries, memoirs, and other personal encounters narrative documents. The narrative is selected carefully to be a metaphor of the whole population, for instance, someone narrating how a calamity strikes their community might be narrative that can tell what the whole community experienced. The models of narratives can be spoken, written, or visually represented. The paradigm is that what one person experienced does not differ significantly from what the rest of the community experienced concerning the specific problem being analyzed (Park, & Park, 2016).-
The third methodology is the phenomenological study which embraces multiple techniques that include interviews, surveys, literature review, and others to describe phenomena. The main models embraced in the phenomenological study include purposive sampling and systematic sampling. The metaphor of this method is that the collection of data from varying sources will give a united theme and data relevant to understanding the phenomena. The paradigm, hereby, is that the collected data about a certain phenomenon will show common features about the phenomena (Park, & Park, 2016).-
The fourth method is grounded theory. It is closely associated with the phenomenological study in that it embraces the use of varying sources of information to develop a theme and collect data about phenomena. Its techniques, models, metaphor, and paradigms are similar to those of the phenomenological study (described in the paragraph above), but unlike phenomenological studies that look into the essence of an event or activity, the grounded theory seeks to give theories or explanations behind an occurrence or event (Park, & Park, 2016).-
The fifth quantitative research methodology is the case study method. This method looks into occurrences as they affected a subject or few subjects. The techniques in this method include a single subject case study or multiple subjects- case studies. The models of inquiry may include interviews, observations, or literature review for past events case studies. This model has a paradigm that what happens to one person applies to other people with a similar problem in society (Park, & Park, 2016).-
2.-Select the best quantitative method and assess the strengths and weaknesses of that selected method defending why the selected quantitative method is the best. 80 words-
The best qualitative method in my opinion is an ethnographic study. Given my interest in social science, I find that understanding the behavior of a given group through interacting with the group is the best model to use. Moreover, unlike case study design this method allows for interaction with a larger number of participants or subjects with similar concerns. Moreover, it is a method that develops a hypothesis that can be approved or disapproved by the research, unlike the phenomenological and grounded theory designs that look for common themes during the active research. One of the weaknesses of ethnographic studies is that it can consume a huge amount of time. The researcher can also be faced with great challenges fitting in with a new culture and gaining their trust after s/he declares interest to understand their cultural elements.-
3.-Compare various quantitative methods and how each method enables researchers to design the correct series of questions and eventually hypotheses to prove the theories. 120 words -
The ethnographic study follows researchers into their cultural roots to understand their behavior. It is appropriate for cultural studies that aim to understand behavior such as consumer behavior. The narrative aims at gaining opinions from specific subjects, or their encounters concerning a certain problem. It closely relates to the case study design which also focuses on individual-s stories. These two methods can yield results in understanding people-s reactions to certain societal problems, for instance, the experiences that parents undergo after losing a job. The phonological studies and grounded theory methodologies are similar in many aspects including the fact that they seek a common theme from multiple sources of information such as interviews, literature, surveys, and other sources. However, the grounded theory seeks to explain or develop a theory describing a certain societal concern, while the phenomenological study looks into the essence of the societal concern of interest. -
The ethnographic study, case study, and narrative begin with preparations that include the identification of the societal problem, development of research questions, and a hypothesis that the study will either approve or disapprove. The phenomenological study and the grounded theory designs, on the other hand, have a planning process that only includes the identification of the problem and sources from which information will be obtained. These two quantitative methodologies develop a common theme in the field of study, which gives research questions to be responded to and maybe a hypothesis which is not mandatorily essential.
reply
Christian
Hey guys, I am starting my journey in Data Science und like to connect with other people. My plan is to make a certified Course in Data Science with exercises for the portfolio. Anyone here likes to join that journey to share experiences and discuss some interesting topics? I am really happy for every joining guy :)
reply
Hey guys, I am starting my journey in Data Science und like to connect with other people. My plan is to make a certified Course in Data Science with exercises for the portfolio. Anyone here likes to join that journey to share experiences and discuss some interesting topics? I am really happy for every joining guy :)
reply
poloconnor
Hi Max, Very informative and interesting, Question, at 13:16 you talk about Continuous data and contrast every number from -infinity to +infinity (i.e. numerical infinity) with every number between -0- and -1-, however, can those numbers be equally infinite as subdivisions can be infinite?
reply
Hi Max, Very informative and interesting, Question, at 13:16 you talk about Continuous data and contrast every number from -infinity to +infinity (i.e. numerical infinity) with every number between -0- and -1-, however, can those numbers be equally infinite as subdivisions can be infinite?
reply
Ray
Awesome breakdown on this topic Max! I have my roots in physics as well and went into it-consulting a few years ago. I have been looking for good introductions on this topic. For me it was so much easier to follow the explanations coming from a physicist. Thanks for that!
reply
Awesome breakdown on this topic Max! I have my roots in physics as well and went into it-consulting a few years ago. I have been looking for good introductions on this topic. For me it was so much easier to follow the explanations coming from a physicist. Thanks for that!
reply
gaurav
Very general data science intro. But it's good cuz it's not too intimidating. More examples would have been better. More guidance in terms of other free resources would have also been good. But this video is good for beginners to understand statistics behind it.
reply
Very general data science intro. But it's good cuz it's not too intimidating. More examples would have been better. More guidance in terms of other free resources would have also been good. But this video is good for beginners to understand statistics behind it.
reply
Abhishek
I didn't understand the part where -48:20 correlation doesn't imply causation. Well, of course it implies causation. If I drink coffee I feel better. This is because of the coffee. Or isn't it?? Please answer. Thank you.
reply
I didn't understand the part where -48:20 correlation doesn't imply causation. Well, of course it implies causation. If I drink coffee I feel better. This is because of the coffee. Or isn't it?? Please answer. Thank you.
reply
Go
Crash course... These are not my personal goals, just how I see Data Science. Data science as i see it.... Goal 1. Stalk and Harrass. Goal 2. Manipulation and deception. Goal 3. Ripoff the naive and uninitiated.
reply
Crash course... These are not my personal goals, just how I see Data Science. Data science as i see it.... Goal 1. Stalk and Harrass. Goal 2. Manipulation and deception. Goal 3. Ripoff the naive and uninitiated.
reply
Christiaan
Hi Max, This is great stuff for any beginner in data science. Do you have any videos/tips on probability and logistic regression that are easy to understand as well? thanks!
reply
Hi Max, This is great stuff for any beginner in data science. Do you have any videos/tips on probability and logistic regression that are easy to understand as well? thanks!
reply
Salim
Before I go into this course,
If all programming languages do not exist.. is data science still exists?
In another way .. is pure data science independent of programming?
reply
Before I go into this course,
If all programming languages do not exist.. is data science still exists?
In another way .. is pure data science independent of programming?
reply
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