Several factors are included in judgment formation by a juror during a trial, including evaluating each piece of information received with respect to the judgment in question, weighting each piece of information according to its validity for the particular judgment and its reliability, and integrating the weighted scale values into a single judgment of guilt appearance. Another component important to consideration of deliberation effects is initial impression prior to introduction of relevant information. During jury deliberation, two types of communication take place: sharing information, important since jurors remember and process different pieces of information; and normative pressure, which is the attempt of jurors to change each other's judgment. Research has shown that jurors who initially agree on the value of evidence tend to make more extreme judgments than do jurors who have opposite valued information. Also, shifts in judgment are larger when jurors share different information with each other than when they repeat facts that the others also cite. In addition, research has shown that while variations in normative pressure may produce change in public judgment, they do not change private judgment. (TJ)