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I will do confirmatory factor analysis, efa, sem, scale validation
Psychologist and Behavioral Data Analyst
I bridge the gap between complex data and human behavior. As a Psychologist and IBM-certified Data Analyst, I don’t just process numbers; I decode the "why" behind them.
With over 6 years of experien...
Level 2
Has met high performance criteria and has a proven track record for meeting client expectations.
About this Gig
Does your scale measure what it should? Reliability & validity (CFA/EFA/SEM) for journals and doctoral committees APA 7 report included.
Does your scale actually measure what it's supposed to? In high-level research, your results are only as good as your instruments.
As a Psychologist and Data Analyst, I provide the statistical rigor needed to validate psychological scales, educational tests, and organizational surveys. I specialize in ensuring your instrument meets the strict standards of peer-reviewed journals and doctoral committees.
I Offer:
- Reliability: Cronbach's Alpha, McDonald's Omega, and Split-half reliability.
- Exploratory Factor Analysis (EFA): Discovering the underlying dimensions of your data.
- Confirmatory Factor Analysis (CFA): Testing theoretical models with R (lavaan).
- Item Analysis: Discrimination indices and identifying "weak" items for scale optimization.
- Validity Testing: Convergent, discriminant, and content validity evidence.
- Norms & Standardization: Creating T-scores, Z-scores, and percentiles for professional use.
All tables and reports are delivered in APA 7th Edition format.
All packages include suggestions to improve your scale at no extra cost.
My Portfolio
FAQ
What information do I need to provide to start the analysis?
To ensure the best results, I need your dataset (preferably in .sav, .csv, or .xlsx), the list of items/questions of your scale, and a brief description of the theoretical dimensions you expect to find. If you have a specific target journal or university guidelines (like APA 7), please let me know.
Can you help me if my CFA model fit indices are poor?
Yes. In the Premium package, I analyze "Modification Indices" to suggest theoretically sound paths or item removals that can improve your model fit (CFI, TLI, RMSEA). I provide a psychological and statistical rationale for every change suggested.
Which software do you use for Psychometric analysis?
I primarily use R Studio (lavaan package) for Confirmatory Factor Analysis (CFA) due to its precision, and SPSS, Jamovi, or JASP for Reliability and Exploratory Factor Analysis (EFA).
Is my data kept confidential?
Yes, 100%. As a Psychologist, I am bound by professional ethics regarding data privacy. Your research data and instruments will never be shared, published, or used for any purpose other than fulfilling your order. I am happy to sign a Non-Disclosure Agreement (NDA) if required.
Reviews
1 reviews for this Gig
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H hydrospheric
United States
Luiggi was very helpful and professional throughout the entire experience. He was very patient and took time to help me navigate this process. I would highly recommend working with him and plan to utilize his services again in the future.
$200-$400
Price
5 days
Duration
L 
Seller's Response
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Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
H hydrospheric
United States
Luiggi was very helpful and professional throughout the entire experience. He was very patient and took time to help me navigate this process. I would highly recommend working with him and plan to utilize his services again in the future.
$200-$400
Price
5 days
Duration
L Seller's Response
Helpful?
