The purpose of this quantitative cross-sectional study was to investigate the role of mentoring on preventing attrition of females in STEM pathways. This particular study examined mentoring sampled women currently in cybersecurity and engineering professions, though the study and subsequent results could be easily applied to other professions. The study addressed the primary research questions: First, is there a statistically significant difference in STEM matriculation between women with mentors and those without? Second, what mentoring characteristics are critical for effectiveness? Third, does mentoring help combat self-perceptions such as imposter syndrome and stereotype threat? The null hypothesis suggested no significant difference in STEM experiences between women with and without mentors, while the alternative hypothesis indicates a difference. Utilizing Mann-Whitney U tests and descriptive statistics, such a frequency distribution and crosstabs, the study used SPSS to analyze data from females in cybersecurity and engineering professions, as previously noted. Findings unveiled several statistically significant data points, and the descriptive data yielded valuable insights. The conclusion determined that mentoring is in fact pivotal in preventing attrition of females in STEM pathways. While this study focused on STEM, there is an opportunity to expand the research, both other STEM-related and non-STEM pathways. The outcomes warranted further investigation into mentoring, contributing to the broader goal of patching the STEM talent pipeline and addressing gender gaps in the workforce. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]