A 30-day thumbnail-test cycle that lifts CTR by 1β3 percentage points without losing reach.
$29
About this course
A 30-day thumbnail ROI test is the most reliable growth investment. This course teaches the test design (clean test video, three thumbnail variants, 7-day windows), the sample-size math, and the decision ritual. We also cover what to do when the test produces no winner.
What you'll walk away with
A 30-day thumbnail-test calendar you can run every month
Clean-test-video requirements so the data is real
Sample-size math: when to commit and when to keep testing
What to do when the test produces no winner
Post-test decision ritual without bias
Course curriculum
20β30 minutes β full lesson-by-lesson breakdown unlocks with enrollment.
Your instructor
Meet your instructor
The BoostLyke YouTube editorial team builds and updates this course every quarter so the tactics ship with the current platform shifts.