Step 3: Subordinate Everything Else

Because we create our control (“A”) and treatment (“B”) groups using random assignment, we can ensure that individuals in the two groups are, on average, balanced on all dimensions that may be meaningful to the test. Random assignment ensures, for example, that the average length of Netflix membe...

Constraint Relaxation provides a powerful framework for seemingly impossible problems with competing demands:

• Distinguish between hard constraints (must be satisfied) and soft constraints (preferences)
• Assign weights to different preferences based on importance...

• The Comfort Zone - this is where you do things where you feel 100% confident in yourself.
• The Growth Zone - you will be challenged in this area, attain new skills, or use the current skills you have in new contexts. It's easier to face the risk of ...