Our Expertise

statistical consultants

Our successful clients frequently cite these reasons for choosing to work with AMSTAT Consulting.

  • All of our principals have PhDs in statistics from leading universities—such as Harvard, Stanford, and Columbia—and include nationally renowned experts.
  • Our principals have extensive backgrounds in statistics. They are experts in statistical analysis, including but not limited to:
    • Linear, logistic, and hierarchical regression analysis
    • Correlation analysis
    • Chi-square tests
    • T‑tests
    • ANOVA
    • MANOVA
    • Structural equation modeling (SEM) and multilevel SEM
    • Confirmatory factor analysis (CFA) and multilevel CFA
    • Factor analysis and principal component analysis
    • Time-series analysis
    • Cox regression and Kaplan-Meier survival analysis
    • Hierarchical linear modeling (HLM)
    • Meta-analysis
    • Bayesian analysis
    • Latent class analysis
    • Longitudinal growth modeling
    • Mixture models
    • Linear mixed models
    • Distribution analysis
    • Ensemble analysis
    • De-identification
    • Trend analysis
    • Sensitivity analysis
    • Negative binomial regression
    • Interim analysis
    • Decision trees
    • Item analysis
    • Nonparametric tests
    • Statistical and decision modeling
    • MaxDiff
    • Segmentation and cluster analysis
    • Conjoint/discrete choice
    • Predictive analytics
  • Our programmers have an accumulated 3,700 years of programming experience across the company. They are experts in statistical programming languages, including but not limited to:
    • SPSS
    • SAS
    • Stata
    • R
    • HLM
    • Mplus
    • SPSS Amos
    • SPSS Modeler
    • Azure
    • JMP
    • WinBUGS
    • Minitab
    • Match!3
    • Access
  • Our number one priority is ensuring on-time, quality work: every project undertaken is supervised on methodology and utilizes internal processes designed to guarantee optimal quality.
  • Our fees usually pale in comparison to the savings and additional profits our work generates for our clients. Over 90% of clients request our assistance more than once, as they are almost universally happy with the different brands of consulting we offer.
  • We are more reasonably priced than most other consultants. We offer personalized, comprehensive, friendly support during and after your consultation in addition to ultra-fast turnaround times.

Our Services

Clinical Data Management

We are happy to provide the help you need during any or all of the following steps toward earning your requested data-based answers:

  • Establishing and operationalizing hypotheses and research questions
  • Providing ample instruction on methods used
  • Inputting, organizing, and cleaning data
  • Implementing statistical analyses
  • Testing reliability (Cronbach’s alpha, test-retest reliability, split-half reliability, and inter-rater reliability) and validity (content validity, construct validity, criterion validity, internal validity, and external validity)
  • Writing up all results—including APA tables and figures
  • Providing syntax and the raw output file
  • Explaining results
  • Allowing unlimited email and phone support to ensure you completely understand the analysis results
  • Conducting two rounds of incidental statistics (if you would like additional statistics)
  • Preparing an effective PowerPoint presentation

Data Management and Test Results for Reliability and Validity

We can correct corrupt or inaccurate records from a recordset or database. The process of data cleaning includes data auditing, workflow specification, workflow execution, post-processing, and controlling, which are comprised of parsing, data transformation, duplicate elimination, and statistical methods. By analyzing the data using the mean, range, standard deviation, and clustering algorithms, we can determine values that are unexpected and thus erroneous. We can examine any standardized residual greater than about 3 (in absolute value), a hat element greater than 3p/n (p = k + 1, k degrees of freedom), a Cook’s distance greater than 1, and the Mahalanobis distance. We can run outlier analysis such as a run-sequence plot, scatter plot, histogram, and box plot. We can also test reliability (Cronbach’s alpha, test-retest reliability, split-half reliability, and inter-rater reliability) and validity (content validity, construct validity, criterion validity, internal validity, and external validity).

Statistical Analysis

statistical consulting

We are experts in statistical analysis, including but not limited to:

  • Linear, logistic, and hierarchical regression analysis
  • Correlation analysis
  • Chi-square tests
  • T‑tests
  • ANOVA
  • MANOVA
  • Structural equation modeling (SEM) and multilevel SEM
  • Confirmatory factor analysis (CFA) and multilevel CFA
  • Factor analysis and principal component analysis
  • Time-series analysis
  • Cox regression and Kaplan-Meier survival analysis
  • Hierarchical linear modeling (HLM)
  • Meta-analysis
  • Bayesian analysis
  • Latent class analysis
  • Longitudinal growth modeling
  • Mixture models
  • Linear mixed models
  • Distribution analysis
  • Ensemble analysis
  • De-identification
  • Trend analysis
  • Sensitivity analysis
  • Negative binomial regression
  • Interim analysis
  • Decision trees
  • Item analysis
  • Nonparametric tests
  • Statistical and decision modeling
  • MaxDiff
  • Segmentation and cluster analysis
  • Conjoint/discrete choice
  • Predictive analytics

Impact Stories

Testify

AMSTAT Consulting has helped lawyers testify on questions of statistical liability and damages in a variety of civil matters.

Contribution to knowledge

AMSTAT Consulting has presented statistical guidelines for lawyers.

+3000 lawyers served

+3000 lawyers served

Examples of Our Work

  • statistical consultants

Internet Use

February 24th, 2021|1 Comment

Our statistical consultants measured the impact of internet use on perceived performance. We performed a regression analysis to determine that internet use significantly affected perceived performance (β = 0.82, p < 0.05). [...]

Mathematics Performance

February 23rd, 2021|0 Comments

Our statisticians developed and tested a model. We examined the effects of motivation on mathematics performance. The model was tested using data from the Third International Mathematics and Science Study (1999) on the mathematics [...]

  • statistical consulting

Financial Performance

February 22nd, 2021|1 Comment

We measured the impact of banking fees on financial performance. Banking fees significantly and positively affected financial performance (β = 0.46, p < 0.05). We performed a regression analysis by using SPSS. [...]

  • statistical consulting

Firm Size & Performance

February 16th, 2021|0 Comments

A major technology company requested statistical consulting to examine the effect of firm size on the performance of firms. The hypothesis was as follows: H1: There is a significant effect of firm size on [...]

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Discover our experts’ secret tutorials

Independent Samples T-Test

February 19th, 2021|0 Comments

The independent-samples t-test is used to determine if a difference exists between the means of two independent groups on a continuous dependent variable. More specifically, it will let you determine whether the difference between [...]

  • statistical consulting

Linear Regression Analysis

February 18th, 2021|1 Comment

A simple linear regression assesses the linear relationship between two continuous variables to predict the value of a dependent variable based on the value of an independent variable. More specifically, it will let you: [...]

  • statistical consulting

Binomial Logistic Regression

February 17th, 2021|0 Comments

A binomial logistic regression attempts to predict the probability that an observation falls into one of two categories of a dichotomous dependent variable based on one or more independent variables that can be either [...]

  • statistical consultants

One-Way ANOVA

February 16th, 2021|0 Comments

If you want to determine whether there are any statistically significant differences between the means of two or more independent groups, you can use a one-way analysis of variance (ANOVA). For example, you could [...]

See our PhD-level experts’ secret tutorials

Contact Us 24/7 for a Free Consultation

It is all about you—let’s dive in!

 We want to hear about the specifics of your project, and one of our experts will provide personalized recommendations and ideas. We will take the time to learn about your project and discuss how we can best help you.

This is a $200 consultation we are providing for free. What is there to lose?

Call Us Now at (669) 900-1414!

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