02356nam a22002417a 450000500170000000800410001702200140005803700190007208200100009110000450010124502350014626000490038130000160043049000510044650500630049752013450056065000340190565000270193965000270196665000330199365000300202685600580205620241226163417.0241226b           ||||| |||| 00| 0 eng d  a0021-9584  bRIEBPL Library  a540.7  aKatieMarie Q. MagnoneEllen J. Yezierski*  aBeyond Convenience: A Case and Method for Purposive Sampling in Chemistry Teacher Professional Development ResearchbA Case and Method for Purposive Sampling in Chemistry Teacher Professional Development Research (Journal Article)  aUSAb:American Chemical Societyc,March 2024  a718–726p.  aAmerican Chemical Society, Volume 101, Issue 3  a***______{For Hard Copy, Please visit Library.}________***  aAbstract-

When designing a study, the sampling method for selecting research participants is an important decision with a host of considerations. When designing a professional development (PD) program with a limited number of spaces, the method of choosing participants from the applicants is also important. When research and professional development are entwined, sets of sampling criteria could conflict. Additionally, in a mixed methods study, such as the one undertaken by the researchers, additional trade-offs exist when considering the many potential methods of sampling and participant selection. In this report, we present a novel solution to the problem of multiple-criterion-focused selection of research and PD participants when the number of applicants to participate outnumbers the availability of resources. By using a weighted ranking system, we were able to incorporate multiple purposive sampling criteria in a simultaneous, rather than sequential, fashion. This allowed us to focus our evaluation of chemistry-specific free-response questions on a narrower pool of finalists and more consistently rate their responses. This multipurposive sampling method and a novel tool developed herein have broad implications for both sampling for chemistry education research and participant selection in professional development.
  aUpper-Division Undergraduate   aIntroductory Chemistry  a Continuing Education   aChemistry Education Research  aMultimedia-Based Learning  uhttps://pubs.acs.org/doi/10.1021/acs.jchemed.3c00217#