#validation Prompts

Measure and validate product-market fit. Indicators: 1. Sean Ellis test (% users 'very disappointed' if product disappeared >40%). 2. Retention cohorts (flattening curve after initial drop). 3. Organic growth rate (word-of-mouth, low CAC). 4. NPS score (>50 is excellent). 5. Sales cycle length (decr...

Design a valid and reliable survey instrument. Steps: 1. Define constructs to measure. 2. Review existing validated scales. 3. Write clear, unbiased questions (avoid double-barreled, leading). 4. Choose appropriate response scales (Likert, semantic differential). 5. Organize logically (demographics ...

Achieve and measure PMF. Indicators: 1. Sean Ellis test ('how disappointed if product went away?' >40% 'very'). 2. Organic growth and word-of-mouth. 3. High retention rates. 4. Users getting core value quickly. 5. Revenue growth acceleration. 6. Qualitative: strong customer enthusiasm. Before PMF: t...

Create a Lean Canvas for rapid business planning. Nine sections: 1. Problem (top 3 customer problems). 2. Customer Segments (target users). 3. Unique Value Proposition (single clear message). 4. Solution (top 3 features). 5. Channels (path to customers). 6. Revenue Streams (pricing model). 7. Cost S...

Create a regular expression to validate a strong password. The password must be at least 8 characters long, contain at least one uppercase letter, one lowercase letter, one number, and one special character (e.g., !, @, #, $). Explain the different parts of the regex.

Build reactive forms using Angular 17 signals. Implementation: 1. Signal-based form state management. 2. Computed validation rules with effect(). 3. Custom validators with async signals. 4. Real-time error messages. 5. Dirty/touched state tracking. 6. Form submission with loading states. 7. Field de...

Build an automated data quality monitoring system. Checks to implement: 1. Completeness (null percentage per column). 2. Uniqueness (duplicate detection). 3. Validity (regex patterns, range checks). 4. Timeliness (data freshness alerts). 5. Consistency (cross-table referential integrity). Create a d...

Create reliable and valid survey instruments. Design process: 1. Literature review to identify existing validated scales. 2. Define constructs clearly, create item pool (3-5 items per construct). 3. Expert review panel (5-7 subject matter experts) for content validity. 4. Pilot testing with 30-50 pa...

Validate with lean startup methodology. Process: 1. Define riskiest assumption. 2. Create minimum viable product. 3. Build-Measure-Learn loop. 4. Customer interviews for insights. 5. Quantitative metrics tracking. 6. Pivot or persevere decisions. 7. Iterate rapidly. 8. Validated learning over vanity...