A corpus of stimuli has been developed to support the use of common materials across research laboratories to examine open-set word recognition in school-aged children. The corpus includes (1) 773 monosyllabic target words that are known to be in the lexicon of 5- and 6-year-old children and (2) seven masker passages that are based on a first-grade child’s writing samples. Materials were recorded by a total of 13 talkers (8 women; 5 men). All talkers recorded two masker passages. Three of these talkers (2 women; 1 man) also recorded the target words. Detailed speech acoustic analyses, and their associated audio files, are also provided. The annotated corpus is made freely available online on this site for research purposes. ________________________________________________________________ **If you use these materials, please cite our paper in JASA-EL that describes these stimuli:** Bonino, A.Y. & Malley, A.R. (2019). Measuring open-set, word recognition in school-aged children: Corpus of monosyllabic target words and speech maskers. *The Journal of the Acoustial Society of America*, 146(4), EL393-EL398. [DOI: 10.1121/1.5130192][1] ________________________________________________________________ **Copyright and License Information:** Copyright in the audio files, list of target words, and masker text passages is retained by The Regents of the University of Colorado, a body corporate. © 2019 The Regents of the University of Colorado, a body corporate. Created by the Children’s Auditory Perception Laboratory at the University of Colorado Boulder. This work is licensed under a [Creative Commons Attribution-NonCommercial 4.0 International License][2]. The copyright and CC BY-NC 4.0 license applies to all files, including those in subfolders, that are located in the following folders: "Target Word Audio Files," "Masker Audio Files," "Supplemental Audio Files for Acoustic Analysis," "List of Target Words," and "Text for Masker Passages." The MATLAB script -- for stimuli resampling and RMS scaling -- is licensed under a [GNU General Public License][3]. ________________________________________________________________ **Download Directions:** If you would like to download the corpus, we recommend that you select the "Files" tab from the bar at the top of the site. Highlight the text that says "OSF Storage," and then click the "Download as Zip" button located in the upper right corner of the window. [1]: https://doi.org/10.1121/1.5130192 [2]: https://creativecommons.org/licenses/by-nc/4.0/ [3]: http://www.gnu.org/licenses/