Britt Theismann, director of statistical programs for the International Institute of Synthetic Rubber Producers, is leaving the association and has been replaced by Annette Walder.
Walder joined the institute Oct. 16. After a brief transition period, she will take over the association's statistical program as manager of statistical services, the IISRP said.
Theismann, an IISRP staff member for a number of years, has resigned to pursue other interests, the association said.
Walder has taught college level mathematics, was a biostatistician at pharmaceutical consulting company Synergos Inc. and most recently was senior systems analyst at Devon Energy Co., an oil and gas company.