Problem Statement: A critical component in counselor education training is the practicum experience. Practicum is the first opportunity to assess the counseling student's ability to apply the knowledge and skills obtained from course work with clients. For an effective practicum process, supervised clinical work is a pivotal experience in the development of professional counselors. Regarding counselor education, under the core areas of helping skills, practicum experience is provided by the Individual-Counseling Practice I-II courses in Turkey. Therefore, in the present study, the effectiveness of these courses is examined. Purpose of Study: The main purpose of the study was to evaluate the effectiveness of individual-counseling practice courses on the basic counseling skill competency levels of Turkish undergraduate counseling students and to investigate the supervision process of the courses. Methods: A mixed methods approach was used to obtain well-validated and substantiated findings. A one-group pre-test post-test design study was carried out with a sample of 42 senior counseling students. The Counseling Skill Discrimination Scale (CSDS) was used to gather data. Focus group interviews were conducted with 10 counseling students to gain a deeper understanding of the counseling students' evaluations of the courses. Findings and Results: The results showed that individual counseling practicum courses seemed to be effective in improving the reflection of content skill and also general basic counseling skills competency level of counseling students but not in improving the reflection of feeling skill. The results of the focus group interviews also are discussed with respect to counseling skills enhancement, supervision intervention, methods, supervisory relationship, and evaluation process. Conclusions and Recommendations: The overall results of this study seemed to suggest that individual-counseling practice courses offer an enriching experience for the undergraduate counseling students and foster the steps toward the development of skillful counselors. However, the supervision process of the individual-counseling practice courses needs an improved structure and organization.