The Complete Guide to AB Testing

By understanding the working principles of various recommendation algorithms, you can create your own personalized recommendation algorithm!

For those who are new to machine learning, we will provide a clear understanding of the direction of study and basic concepts.

The 65th Open House is about showing how data analysis is enriched by changing the type of variables. It mainly covers scoring, binning, and optimal scaling. The 66th Open House is about learning in detail about the concept and understanding of marginal effects and subgroup analysis.

Data-driven growth hacking needed for PM, marketers, designers, operations managers, and sales positions. This one video will give you a complete understanding of the basics.

Don't be afraid of coding or data analysis anymore! Develop your data analysis skills without coding with Orange.

This is a course for PMs who want to utilize data. This course covers the entire process of utilizing data in the PM role, including the flow of work from day 1 of a job change through the start and end of a project. It is an introductory data course that covers data-driven thinking, logical thinking, metric definition, log design, experiment design, creating a data culture, and more, to help you develop critical thinking skills. Although created as a course for PMs, it is structured with content that data analysts would also find beneficial (in fact, many analysts have taken the course). In addition, many people in marketing, design, and business planning roles are also taking the course.

Experimentation and A/B testing are essential skills in CRM marketing and growth marketing practice. Both PMs and POs must repeatedly conduct experiments and A/B tests in growth marketing and CRM marketing campaigns to maximize performance and efficiency. In fact, when PM and PO roles establish CRM marketing strategies based on experimentation and A/B testing, they can simultaneously achieve data-driven growth marketing performance and cost efficiency.

For your exam preparation, move forward now on the path of data-driven analysis and insight. We are rooting for your success. 2026 Written Exam Application 1.12 ~ 1.15, Written Exam Schedule 1.30 ~ 3.3, Announcement of (Expected) Successful Candidates 3.11 Eligibility Review Base Date 3.3, Practical Exam Application 3.23 ~ 3.26, Practical Exam Period 4.18 ~ 5.6 Final Results Announcement 6.5 https://www.instagram.com/letitgoleelee

The 63rd Open House explains the concept of effect size and SPSS's effect size output. It also covers the concept of sample size and power and SPSS's power analysis method. The 64th Open House learns in detail about the extension and evolution of linear regression.

ADsP Summary + Past Exam Solutions. Reflects August 2025 46th Exam! (Continuously Updated!)

ADsP Certification All-In-One Course! Ultra-Short Completion! Reference Book: "Everyone's ADsP Cheat Sheet" https://wikidocs.net/book/18829

Let's develop specialized skills in programming skills, algorithm skills, and statistical analysis skills!

Statistics learned in school, was it too hard to understand? No matter how much you listened to the explanation, statistics were confusing, but we will help you understand them. If you implement them one by one by hand using Excel, you will understand statistical concepts that you didn't understand! A new experience that makes boring statistics fun! We will give you a gift. :)