This study aims to develop a career exploration instrument based on Anne Roe’s classification to help junior high school students explore their career options. The development method uses the Syaiffudin Azwar instrument development model with 8 stages, namely the identification of measuring objectives; measuring domain restrictions; operationalization of aspects; writing and reviewing items; language test; field tests; item selection and; final compilation. The field test was carried out on 306 junior high school students in the Godean area, Yogyakarta. The results of the CFA test show that all instrument items that make up the 8 career groups obtained fit results based on the p-value indicators of 0.257, RMSEA 0.15, GFI 0.87, AGFI 0.86, and CFI 1.00. CFASO test results obtained p-value 0.257 greater than 0.05 and RMSEA value 0.015 less than 0.05. In addition, the results of multidimensional reliability testing showed a score of 0.87 greater than 0.70. These findings indicate a valid and reliable instrument to help explore the careers of junior high school students. Abstrak: Penelitian ini bertujuan untuk mengembangkan instrumen eksplorasi karier berdasarkan klasifikasi Anne Roe guna membantu siswa sekolah menengah pertama mengeksplorasi pilihan kariernya. Metode pengembangan menggunakan model pengembangan instrumen Syaiffudin Azwar dengan delapan tahapan yakni: identifikasi tujuan ukur; pembatasan domain ukur; operasionalisasi aspek; penulisan dan review butir; uji coba bahasa; field test; seleksi butir; dan kompilasi final. Field test dilaksanakan terhadap 306 siswa sekolah menengah pertama di wilayah Godean, Yogyakarta, Indonesia. Hasil pengujian CFA menunjukkan seluruh butir instrumen yang membentuk delapan kelompok karier memperoleh hasil fit berdasarkan indikator p-value 0.257, RMSEA 0.15, GFI 0.87, AGFI 0.86, dan CFI 1.00. Pengujian CFASO menunjukkan p-value 0.257 lebih besar dari 0.05 dan nilai RMSEA 0.015 kurang dari 0.05. Selain itu, hasil pengujian reliabilitas multidimensional menunjukkan skor 0.87 lebih besar dari 0.70. Temuan ini menunjukkan instrumen valid dan reliabel untuk membantu eksplorasi karier siswa sekolah menengah pertama.

The study aims to analyze the effectiveness of the rational emotive behavior therapy (REBT) approach in increasing junior high school students' interpersonal communication and self-confidence. This study is an experimental study using a quasi-experimental design. The design is a time-series design that uses one experimental group measured repeatedly. The sample in this study was determined using a purposive sampling technique, and seven students met the predetermined criteria. Data was collected using an interpersonal communication scale and a self-confidence scale whose reliability was tested using the Cronbach Alpha formula. The data analysis used was nonparametric statistics using the Wilcoxon Match Pair Test to determine changes in scores on repeat measurements. This study found that: (1) the REBT approach showed its effectiveness in improving interpersonal communication skills in research subjects (sig, p = 0.018 < 0.05); and (2) the REBT approach proved effective in increasing selfconfidence (sig, p = 0.016 < 0.05). Therefore, it can be interpreted that using the REBT approach effectively improves interpersonal communication skills and self-confidence in junior high school students.