You can preview and download the dataset from this tab. The dataset is available in multiple file formats, compatible with most common software packages. You can also view and download the Codebook, which provides information on the structure, contents, and layout of the dataset.
This dataset is designed for teaching the single mean t-test. The dataset is a subset of data derived from the Consolidated State Performance Report from the U.S. Department of Education. It looks specifically at middle school science proficiency rates across the 50 states plus the District of Columbia and Puerto Rico. The dataset file is accompanied by a teaching guide, a student guide, and a how-to guide for SPSS.