Valence of an attitude tells us whether an attitude is positive or negative towards the attitude object. For example, an attitude towards a nuclear research is expressed on a 5-point scale ranging from 1 (Very Bad), 2 (Bad), 3 (Neutral), 4 (Good) and 5 (Very Good). A rating of 4 or 5 indicates a positive attitude towards nuclear research while a rating of 1 or 2 indicates a negative attitude and a rating of 3 indicates a neutral attitude.