Pongprapan Pongsophon|Artitaya Jituafua
Developing and Assessing Learning Progression for Botanical Literacy by Using Rasch Analysis
Kasetsart University|Suratthani Rajabhat University
study aimed develop learning progression lp botanical literacy assess impact gardenbased education course thai preservice science teachers n 49 inquiry communitybased education course taught 15week period measure botanical literacy 50item multiplechoice test employed hypothetical model construct proposed validated using dichotomous rasch model results indicated model fits data well thus hypothetical model confirmed validated botanical literacy comprised conceptual procedural domains domain several core ideas subordinate concepts located linear construct arranged increasing difficulty example conceptual domain core ideas arranged easiest difficult plant diversity plant morphology plant ecophysiology botanical literacy preservice teachers measured instruction measure learning gain fixed pre postitem difficulty estimated postinstruction person ability means pre postinstruction person ability compared using welch ttest found learning gain statistically significant p lt 001 study discusses implications lp botanical literacy biology education