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Vladimir H.
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Vladimir H.

PhD | Research design, Data analysis, Statistics, Psychometrician

I am an experienced researcher in the area of psychology and social sciences with more than two decades of experience in doing research, leading research teams, and teaching statistics, psychometrics, and research methodology. - I design research studies, do statistical analysis of your data, and present the results in the format you need them. - If you need consultations on research methodology, research design, data analysis, getting insights from your data, preparing a project or presenting results, I can help. - An experienced psychometrician, I design questionnaires and scales, do analyses of responses and answers, and help you draw correct conclusions from the data. - I review both AI-generated and human-created work, ensuring that methods, assumptions, and conclusions are statistically valid and logically sound. I can identify hidden errors, misinterpretations, and risks, providing clear guidance so decisions are based on reliable and defensible evidence. I work quickly and thoroughly, closely following the requirements of the client. The quality of my work and the satisfaction of my clients are always my top priorities. I hold a PhD in psychology and work as a university professor. My fortes include research methodology, psychometrics, statistical analysis, and cross-cultural assessment, but also market research. I authored and coauthored a number of scientific papers and scientific books, some of them published by top-tier academic publishers. For 8 years, I have been the editor-in-chief of a SSCI-referenced journal in psychology, the most influential scientific journal in my part of the world. I have extensive experience editing and preparing scientific papers in various roles in scientific journals. I also enjoy writing on science topics for nonacademic audiences and am quite good at it. Some of my recent publications in the English language include: Hedrih, V. (2020). Adapting Psychological Tests and Measurement Instruments for Cross-Cultural Research: An Introduction (1st Edition). Routledge, Taylor&Francis Group. Hedrih, V., & Hedrih, A. (2022). Interpreting Statistics for Beginners : a Guide for Behavioural and Social Scientists. Routledge, Taylor&Francis Group..

🇷🇸Nis, Serbia$80/hr100% JSS4.96 (110)Since Oct 2022

Earnings and projects

MRR
$4.6k

Last 6 months ÷ 6

World#6,158 / 412k
🇷🇸Country#60 / 4,015
Revenue, last 30 days
$3k

Last 6 months: $28k

World#12,760 / 412k
🇷🇸Country#136 / 4,015
Total earnings
$245k

Billed in all: $254k

World#11,114 / 412k
🇷🇸Country#147 / 4,015
Per project
$1.4k

$1.5k in the last 6 months

World#102,134 / 412k
🇷🇸Country#1,165 / 4,015
Projects, last 6 months
19

Across 20 contracts

25% fixed75% hourly
World#6,608 / 412k
🇷🇸Country#38 / 4,015
Projects in all
181

Across 192 contracts

45% fixed55% hourly
World#11,716 / 412k
🇷🇸Country#200 / 4,015

Earnings, last 30 days

$254k+$3k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$250k$252k$254kOct 9Oct 24Nov 8

Skill rankings: Top 0.23% in Scientific Research

Top 1% in 7 of 15 skills, ranked by MRR among everyone on Upwork with the skill.

  1. 2Scientific Research852 freelancers · 🇷🇸 #1Top 0.23%
  2. 3Psychometrics147 freelancers · 🇷🇸 #1Top 2%
  3. #4IBM SPSS788 freelancers · 🇷🇸 #1Top 0.51%
  4. #6Psychology1,042 freelancers · 🇷🇸 #1Top 0.58%
  5. #6Scientific Writing1,037 freelancers · 🇷🇸 #1Top 0.58%
  6. #6Survey Data Analysis225 freelancers · 🇷🇸 #1Top 3%
  7. #9Research Methods1,716 freelancers · 🇷🇸 #1Top 0.52%
  8. #9Data Analysis Consultation327 freelancers · 🇷🇸 #1Top 3%