PENGARUH OVERCONFIDENCE BIAS, COGNITIVE DISSONANCE BIAS, DAN ILLUSION OF CONTROL BIAS TERHADAP KEPUTUSAN INVESTASI SAHAM (Studi pada Mahasiswa Universitas Mercu Buana Aktif yang Menjadi Investor Tahun 2018)

LUCYTA, ALRA (2020) PENGARUH OVERCONFIDENCE BIAS, COGNITIVE DISSONANCE BIAS, DAN ILLUSION OF CONTROL BIAS TERHADAP KEPUTUSAN INVESTASI SAHAM (Studi pada Mahasiswa Universitas Mercu Buana Aktif yang Menjadi Investor Tahun 2018). S1 thesis, Universitas Mercu Buana Jakarta-Menteng.

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Abstract

Penelitian ini dimaksudkan untuk mengetahui pengaruh overconfidence bias, cognitive dissonance bias dan illusion of control bias terhadap keputusan investasi. Objek penelitian ini adalah mahasiswa mercubuana aktif yang menjadi investor tahun 2018 sejumlah 394 mahasiswa. Teknik pengambilan sampel adalah purposive sampling dengan kriteria mahasiswa mercubuana aktif yang terdaftar di Galeri Investasi Mercubuana, dengan jumlah sampel 200 mahasiswa. Analisis data dalam penelitian ini menggunakan metode alternatif dari Structural Equation Modeling (SEM) yaitu WrapPLS 3.0. Tahap pertama dalam penelitian ini untuk menguji validitas pertanyaan setiap variabel berikut dengan reliabilitasnya. Tahap kedua menguji hubungan antara overconfidence bias, cognitive dissonance bias, dan illusion of control bias terhadap keputusan investasi. Hasil dari penelitian ini menyatakan bahwa variabel overconfidence bias berpengaruh positif dan signifikan terhadap keputusan investasi. Begitu pula dengan cognitive dissonance bias dan illusion of control bias berpengaruh positif dan signifikan terhadap keputusan investasi. Kata kunci: overconfidence bias, cognitive dissonance bias, illusion of control bias, dan keputusan investasi. This study discusses the influence of overconfidence bias, cognitive dissonance bias, and the illusion of control bias towards investment decisions. The object of this research is active mercubuana students who became investors in 2018 participating 394 students. The sampling technique was purposive sampling with the criteria of active mercubuana students registered at the Mercubuana Investment Gallery, with a sample of 200 students. Data analysis in this study uses an alternative method of Structural Equation Modeling (SEM), namely WrapPLS 3.0. The first step in this study was to test the validity of each question raised with its reliability. The second stage determines the relationship between overconfidence bias, cognitive dissonance bias, and the illusion of bias control over investment decisions. The results of this study state that the overconfidence variable is positively and significantly biased towards investment decisions. Likewise, cognitive dissonance bias and the illusion of positive and significant control bias towards investment decisions. Keywords: overconfidence bias, cognitive dissonance bias, illusion of control bias, investment decisions

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