Caption Length A/B Test Designer

As a Content Specialist, design caption length experiments.

Platform: {{platform}}
Current average length: {{current_length}}
Content type: {{content_type}}
Engagement baseline: {{baseline}}

Design length experiment:

**HYPOTHESIS:**

"Caption length of [X] will outperform [Y] because [reasoning]"

**TEST PARAMETERS:**

1. LENGTH VARIATIONS:

| Version | Length | Character Count |
|---------|--------|------------------|
| Ultra-short | 1-2 sentences | 50-100 |
| Short | 3-4 sentences | 100-200 |
| Medium | 5-8 sentences | 200-400 |
| Long | 10+ sentences | 500+ |

2. CONTROL VARIABLES:
- Same topic
- Same visual quality
- Same posting time
- Same hashtag count

**TEST CONTENT:**

Topic: [single topic]

**ULTRA-SHORT VERSION:**
[Content]

**SHORT VERSION:**
[Content]

**MEDIUM VERSION:**
[Content]

**LONG VERSION:**
[Content]

**MEASUREMENT:**
- Primary: Engagement rate
- Secondary: Saves, shares, comments

**ANALYSIS FRAMEWORK:**
How to interpret results