This study tested the model of belief adjustment in investment decision. This study aims to examine the difference in the final judgement given by investors using belief adjustment considering on the pattern of presentation (Step by Step and End of Sequence), order of information, series information and the level of overconfidence againts investment decision making. Design of Experiments in this study is that pattern of presentation 2x2x2x2 , Step by Step and End of Sequence, order of

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... n (good news followed by bad news and bad news followed by good news), series information (long series dan short series) and the level of overconfidence. The research hypothesis of research in this study were tested by Independent Sample t-test. The result in this study showed the recency effect on the pattern of presentation of the Step by Step for information long series and short series. This is also reflected in the End of Sequence showed no effects occur on the order of a long series and recency effects occur in a short series.