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Learner Reviews & Feedback for Data Science in Real Life by Johns Hopkins University

2,314 ratings
278 reviews

About the Course

Have you ever had the perfect data science experience? The data pull went perfectly. There were no merging errors or missing data. Hypotheses were clearly defined prior to analyses. Randomization was performed for the treatment of interest. The analytic plan was outlined prior to analysis and followed exactly. The conclusions were clear and actionable decisions were obvious. Has that every happened to you? Of course not. Data analysis in real life is messy. How does one manage a team facing real data analyses? In this one-week course, we contrast the ideal with what happens in real life. By contrasting the ideal, you will learn key concepts that will help you manage real life analyses. This is a focused course designed to rapidly get you up to speed on doing data science in real life. Our goal was to make this as convenient as possible for you without sacrificing any essential content. We've left the technical information aside so that you can focus on managing your team and moving it forward. After completing this course you will know how to: 1, Describe the “perfect” data science experience 2. Identify strengths and weaknesses in experimental designs 3. Describe possible pitfalls when pulling / assembling data and learn solutions for managing data pulls. 4. Challenge statistical modeling assumptions and drive feedback to data analysts 5. Describe common pitfalls in communicating data analyses 6. Get a glimpse into a day in the life of a data analysis manager. The course will be taught at a conceptual level for active managers of data scientists and statisticians. Some key concepts being discussed include: 1. Experimental design, randomization, A/B testing 2. Causal inference, counterfactuals, 3. Strategies for managing data quality. 4. Bias and confounding 5. Contrasting machine learning versus classical statistical inference Course promo: Course cover image by Jonathan Gross. Creative Commons BY-ND
Statistics review

(44 Reviews)

Top reviews


Aug 19, 2017

A very good and concise course that helps to understand the basics of the Data Science and its applications. The examples are very relevant and helps to understand the topic easily.


Nov 11, 2017

Highly educational course on the realities of data analysis. Many good tips for your own analyses as well as for managing others responsible for coherent and accurate analyses.

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176 - 200 of 280 Reviews for Data Science in Real Life

By Dr D M

Jul 29, 2020

This course is very interesting and worthwhile. we are living with data in our real life. good lectures. thanks to all team.


By Federico J D F

Sep 9, 2020

The course was very interesting and complete. The lectures were interesting as well. The reading material could be improved by adding more articles to reinforce the theory and examples.

By Charissa B

Jan 11, 2021

Helpful ideas to consider and use when managing a team of data scientists, especially helpful are the principles for dealing with on-the-ground data science work (vs ideal environments)

By Lai Y W @ L Y W

Aug 21, 2020

Slightly difficult for non data science background people, but is manageable to have a dip into this course and stimulate a "real life" experiences shared by course insructor.

By Yani

Oct 27, 2016

Dr.Caffo is really well-versed with his field but I feel like concepts should be given more concrete examples so that they seem more interesting. Respect him all the way!

By Nishant J

Mar 5, 2018

Examples used in this course are related to Lifescience and candidates like me find it difficult to correlate. It would be beneficial to use some common life examples.

By Kian G L

Aug 13, 2016

Is good to have some data science background to enroll in this course, overall still good to learn and get the hint of how real life data scientist life is.


May 9, 2018

Good course - I'm now confident to oversee an end-to-end data science experiment. Some interactivity would make this the perfect overview of data science.

By Reginald D F

Dec 23, 2017

I like that this course examples the many ways an experiment/analysis can go wrong and how to address these issues. Very practical for the practitioner.

By Kitven L

Dec 30, 2020

Many real life examples but in the courses the instructor introduced some new concepts which could be useful if get into more details of them.

By Siddharth T

Apr 3, 2016

Again a course with depth in content but the presentation of the course could improve , it seems a bit patchy and pre-reads would help.

By Vivek V

Mar 8, 2020

A very well crafted course, with apt messaging and good assessments. Was able to learn a lot about the nuances of Data Science

By Sheila O

Jan 2, 2021

Materials and lectures were really helpful. Would like to have seen a bit more on prediction analysis in real life.

By Karthik S N

May 1, 2016

Good concepts - apply to anyone new to data science.

Lot of good 'read further' links and materials. Learnt a lot.

By Adeyinka O

Nov 30, 2021

C​ontent is rich, seem like so small but detailed and require good concentration to enjoy the quizes with ease

By Barnali G

Apr 1, 2021

Great from an overview perspective. Certainly learnt the overall basics as I was hoping to be able to.

By Andrew W

Nov 2, 2017

Great examples and explanations of real cases, very helpful for general understanding of concepts.

By Boris L

Oct 5, 2015

Very nice overview of what can go wrong in a data science project and what to pay attention to.

By Koshan E

Jul 8, 2021

A very good and interesting course that gives you a good stepping stone regarding Data Science

By Udaypal S N

Nov 25, 2017

Need more focus on other industries like Telecom, Banking, Manufacturing, Semi-Conductor, etc.

By Challenger

Dec 15, 2020

Gives enough understanding of data science in related fields, but course is complicaed enough

By Natalya K

Jul 8, 2017

A bit difficult to understand compared with other course of the specialization, but useful

By Warren L

May 5, 2017

Appreciated the anecdotes as they allowed me to remember the learnings in context

By Morie H H K

Aug 31, 2020

Good for the start but need more insight explanations with hands-on practicals

By Debasish M

Feb 2, 2017

Practical approach and gotchas to consider for doing data science in real life