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Services

  • Business Solutions
  • Data analysis for Results chapter of dissertation
  • Sample size determination
  • Determining the appropriate statistical tests to use
  • t-test
  • ANOVA, MANOVA, ANCOVA, MANCOVA
  • Regression
  • Other statistical techniques
  • Effect size
  • APA formatting


  • Aliza Berger, PhD, Director


    Subject Areas

    Psychometrics, standardized testing, cognitive psychology, surveys.

    Statistics Expertise

    t-test, ANOVA, MANOVA, correlational analysis, regression analysis. Chi-square, Wilcoxon, Mann-Whitney U, (test) item analysis, item response theory.

    Computer Expertise

    SPSS, Excel, Word.

    Education

    PhD in Measurement, Evaluation, and Statistics, Columbia University, New York. Dissertation title: Effects of problem features on strategy selection in mathematics word problems.
    BSE in Engineering Science, Cooper Union, New York

    Additional Biography

    Dr. Berger worked as a researcher and tests and measurements consultant at the New York City Board of Education and at the National Institute for Testing and Evaluation in Jerusalem. She taught the graduate course Classroom Testing at Ben-Gurion University of the Negev, Israel. Dr. Berger has made several conference presentations, including ones at the American Educational Research Association Annual Meeting. She interned at ETS (Educational Testing Service) in Princeton, NJ and published in the ETS Research Report Series.

    Mindy Schimmel, PhD


    Subject Areas

    Social science, social policy, sociology, public health, business, demography, psychology, biostatistics

    Statistics Expertise

    Crosstabulations, chi-square analysis, correlational analysis. Linear regression, logistic regression, Cox regression. Cluster analysis, trees. Smallest space analysis. Analysis of qualitative data using quantitative measurements. ROC curves.

    Computer Expertise

    SAS, SPSS, Excel, Word, PowerPoint

    Education

    PhD in Sociology, University of Chicago. Dissertation title: How Israeli Palestinians construe their identities

    MA in Statistics, University of Chicago. Thesis title: The analysis of contingency tables using quantitative scores

    BA in Sociology, Harvard University - magna cum laude

    Additional Biography

    Dr. Schimmel, a Fulbright scholar, graduated from Harvard University magna cum laude. She has worked as a statistician and researcher in prestigious institutions in the US and Israel, including the Guttman Institute of Applied Social Research and the University of Chicago. She has published in journals such as “Blood” and “Journal of Health and Social Behavior,” and has presented papers at many conferences, including the Annual Meeting of the American Sociological Association and the Annual Convention of the American Psychological Association.

    Mona Boaz, PhD


    Subject Areas

    Medicine (cardiovascular disease, nephrology, neurology, gynecology, immunology, pediatrics, surgery), nutrition, epidemiology, biotechnology, pharmaceutics. Quality of life studies, visual analogue scales, surveys.

    Statistics Expertise

    Sample size calculations, data analysis including descriptive statistics and hypothesis testing. Interpretation of data. Data summarization, inferences from data, estimating and comparing means and proportions including three or more means, association and prediction including linear and logistic regression. Survival analysis. Design and development of research projects; data analysis for ongoing research. Protocol development. Research design, research methods, and research implementation, including cross-sectional, retrospective, prospective, and clinical trial designs.

    Computer Expertise

    SPSS, Excel, Word, Powerpoint, Statistix, Prism, GraphPad, MediCalc, Analyze-It

    Education

    PhD in Epidemiology and Preventive Medicine, Sackler Medical Faculty at Tel Aviv University. Dissertation title: Secondary prevention using antioxidants of cardiovascular disease in endstage renal disease - SPACE

    MSc in Nutrition Science, California State University, Los Angeles. Thesis title: Biochemical and anthropometric indicators of malnutrition in patients with AIDS

    BA in Psychobiology, UCLA

    Certification in Good Clinical Practice (GCP; FDA-approved course)

    Additional Biography

    Dr. Boaz, an epidemiologist and biostatistician, serves as principal investigator in her capacity as the director of the epidemiology/research unit at the Wolfson Medical Center in Holon, Israel. As a consultant to pharmaceutical companies (including Teva, Israel’s largest pharmaceutical company), her projects included protocol design, investigatory drug applications, clinical trial reports, investigators’ brochures, integrated summary of safety reports, scientific papers, and marketing materials. She has published in many peer-reviewed journals, including “The Lancet,” “Kidney International,” “Pediatrics,” and “American Journal of Kidney Diseases.” She taught epidemiology at Tel Aviv University and has received numerous grants for her research totaling over $130,000.

    Elliot Turvall, MSc


    Subject Areas

    Business, economics, biology, genetics, medicine, public health, geriatrics, biotechnology, bioinformatics, epidemiology, pharmaceutics, pharmacology, immunology, psychology, education, sociology, demography, social science. Surveys; tutoring.

    Statistics Expertise

    Data analysis including descriptive statistics and hypothesis testing, such as t-tests, ANOVA, correlational analysis, crosstabulations, chi-square analysis, linear and logistic regression. Interpretation of data, data summarization, inferences from data, estimating and comparing means and proportions, association and prediction.

    Computer Expertise

    SAS, Enterprise Guide, Excel, Matlab, Mathematica, Word, FrameMaker, PowerPoint.

    Education

    MSc (with honors) in Mathematical Statistics and Bioinformatics, Göteborg University and Chalmers University of Technology, Göteborg, Sweden.
    Thesis title: How to Make Stability Studies More Efficient.

    BSc (with honors) in Mathematics, Göteborg University and Chalmers University of Technology, Göteborg, Sweden.

    BA (with honors) in French and Hebrew, Göteborg University, Göteborg, Sweden. Thesis title: L'Union pour un Mouvement Populaire (UMP) et Nicolas Sarkozy.

    Additional Biography

    At the Department of Biostatistics at AstraZeneca, Mölndal, Sweden, Mr. Turvall dealt with statistical problems in drug research, especially stability studies. As a statistician at the Department of Rehabilitation and Geriatrics at Hadassah University Hospital, Mount Scopus, Jerusalem, Mr. Turvall was responsible for the statistical analyses within the Jerusalem Longitudinal Study. At present, Mr. Turvall works in the research department of the National Institute for Testing and Evaluation in Jerusalem, where he is in charge of analyzing and evaluating higher education entrance exams and surveys.

    One of Mr. Turvall's native languages is English.

    Lawrence Feldman, MS, MBA


    Subject Areas

    Market segmentation and other business problems that lend themselves to data-mining techniques
    System problems that involve determining the optimal levels of parameters that influence overall performance

    Statistics Expertise

    Data mining, design of experiments

    Computer Expertise

    Statistica, Java programming, databases, computer simulation

    Education

    MS in Operations Research, University of California at Berkeley

    MBA, Marketing, Hebrew University, Jerusalem

    Additional Biography

    Lawrence Feldman developed and implemented mathematical models for the operations research departments of top firms such as American Airlines, International Paper, and Elta (Israel Aircraft Industries), and served as a statistician and computer-simulation developer at TeraOp Optical Networking, an Israeli high-tech startup.

    Elie Lebowitz, MA


    Subject Areas

    Elie Lebowitz has extensive experience tutoring students in statistics. He has consulted as a statistician in the social sciences (psychology, sociology, education, criminology and social work), as well as in medicine and dentistry.

    Statistics Expertise

    Parametric tests, including: t-test, ANOVA, MANOVA (for between and within subject models), post hoc tests (e.g., Scheffe), GLM, correlational analysis, regression analysis (Pearson, Spearman, rpb [point-biserial correlation], multiple regression). Non-parametric tests, including: chi-square, Wilcoxon for dependent and independent samples, Mann-Whitney U, Phi correlations. Cluster analysis, path analysis, and factor analysis. Reliability tests.

    Computer Expertise

    SPSS, STATISTICA, Office, Internet

    Education

    PhD student in Clinical Psychology at Tel Aviv University. Thesis title: Violent behavior patterns in obsessive-compulsive children and adolescents

    MA in Psychology (en route to PhD), Tel Aviv University

    BA in Psychology and Criminology, Bar-Ilan University, Ramat Gan, Israel - summa cum laude

    Ariela Knaanie, MA


    Subject Areas

    Consulting researchers and students in medicine, dentistry, biology, pharmacology, economics, and social science. Areas of medicine include community medicine, general surgery, immunology, nursing, neuro-oncology, genetics, clinical biochemistry, clinical microbiology, tissue typing, and pediatrics.

    Statistics Expertise

    All techniques, reliability and analysis of satisfaction surveys.

    Computer Expertise

    SPSS, SAS, S+, Access, Visual Access, Pascal, VB, databases.

    Education

    MA in Applied Statistics, Hebrew University, Jerusalem
    BA in Statistics, Hebrew University, Jerusalem

    Additional Biography

    At Telrad (an Israeli telecommunications company), Ms. Knaanie was in charge of statistics for the production department. There, she designed experiments, analyzed internal and customer satisfaction surveys, analyzed alpha and beta sites, and performed quality analysis involving statistics. She taught a course in statistical methods at Israel's Meteorological Authority. Earlier, she served as a teaching assistant for courses in statistics taken by medical students and students in the social sciences.


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