SRS is a unit within the ISU Statistical Laboratory. The Statistical Laboratory provides statistical consulting services that are available to all ISU faculty. SRS provides statistical consulting services in areas that are of special importance to faculty in the social and behavioral sciences such as: questionnaire design, analysis of survey data, the design and analysis of experiments involving human subjects, program evaluation, quasi-experimental design, meta-analysis, psychometric reliability and validity studies, regression and econometric analysis, factor analysis, structural equation modeling, mediation analysis, latent growth curve modeling, power analysis, sample size requirements, and assistance with SPSS.
Fees: The first two hours of collaboration are free of charge. Subsequent collaborative efforts are billed at a negotiated hourly rate.
SRS consultants and their areas of consulting expertise are listed below. Simple questions often can be answered by email correspondence. More complicated problems usually require a meeting with a consultant. Please make the initial contact with a consultant through email.
Sampling design, missing data methods
Questionnaire design, online survey methods
Regression analysis, factor analysis, structural equation modeling, latent growth curve modeling
Multivariate analysis, quasi-experimental design, program evaluation, time series and forecasting
Survey sampling, computer-assisted data collection systems (Currently the Vice President for Research at ISU.)
Survey sampling, econometric methods
Time series analysis, multivariate analysis, survey sampling