Tag: startup

statistics in data science and analytics

How not to be biased

In the last 2 weeks I’ve introduced 9 common statistical bias types. If you went through them, you have already taken the first very important step towards overcoming…

statistics in data science and analytics

Statistical Bias Types explained – part 2 (with examples)

It’s time to continue our discourse about Statistical Bias Types. This is part 2 – if you missed part 1, read it here: Statistical Bias Types part 1….

conversion rate optimization cro

How to Create UTM Codes and Track Your URLs

Wouldn’t it be good to know where most of your traffic is coming from? What about email sign ups or even revenue broken down by social channels? How…

conversion rate optimization cro

Website Heatmaps – Tools, Features & Best Practices

Creating heatmaps is a simple and efficient way to analyze your website visitors’ interactions and your users’ behavior on your website. If you are running an online business…

conversion rate optimization cro

Usability testing (for Data Analysts)

Usability testing is a popular research method for collecting detailed and direct user feedback about your online product, website or mobile application. What is it exactly and how…

coding in data science and analytics

Data Coding 101 – Introduction to Bash – ep2

It’s time to continue with learning data science and data coding in Bash! Last time I covered the very basic orientation commands. Now we’re moving on with the…

conversion rate optimization cro

The Conversion Rate Optimization Framework I Use at Data36…

… is exactly the same one that many well-known startup and e-commerce companies are using. However, somehow this fundamental CRO framework hasn’t been published anywhere so far! (As…

conversion rate optimization cro

Five Second Test

Everyone who works on online research projects should use (or at least be familiar with) qualitative methods, too. Even if you are a data scientist who trusts the…

coding in data science and analytics

Google Analytics vs. SQL: When and why to build your own data tools

For the record: I’m a big fan of third-party data tools (e.g. Google Analytics, Hotjar, Crazyegg, Optimizely, Google Optimize). I like them because they are easy to use…

Strategy and Business in Data Science and Analytics

How data collection works

The first step for every data science project is data collection, that is, getting the actual raw data. There are two ways to do this: A) You can…

Strategy and Business in Data Science and Analytics

Data resistance – How to evangelize data-driven culture

If you are reading this article, then you probably care about data-driven thinking and like to make decisions supported by data. Bad news!Not everybody at your organization is…

Strategy and Business in Data Science and Analytics

Why Data Literacy Matters

I ran a data driven test a few weeks ago at the startup where I work, where I tried to drive paid app installs. Along the way I…

Strategy and Business in Data Science and Analytics

Customer Retention Analysis (calculating retention rate, running cohort analysis, and more…)

Are you running an online business?Do you care about converting your new users into frequently returning users? Great! In that case customer retention analysis will play a significant…