In order to attain change in knowledge, attitude and behaviour, the community shouldrnhave access to adequate and factual health information. In Ethiopia, most of thernhealth institutions develop one or more of printed health education materials, majorityrnof which are pamphlets and posters on HIV/AIDS. Although such materials are beingrndistributed, the level of their effectiveness in changing knowledge, attitude andrnbehaviour of the target population is not established in the local context.rnThe objective of this thesis research was to develop and test the effectiveness of arnVCT pamphlet in changing knowledge and attitude of high school students towardsrnVCT in North Shoa Zone, Oromia Region, Ethiopia.rnA Randomized Controlled Trial was conducted to test the effectiveness of a VCTrnpamphlet in changing knowledge and attitude of high school students towards VCT.rnThe intervention and control groups were selected randomly from the two high schoolsrnfound in North Shoa. Single blinding was employed to avoid the Hawthorn effect. ThernVCT pamphlet was given only to the intervention group. The pre-and post-interventionrnknowledge and attitude of students towards VCT were assessed by the use ofrnstructured and pre-tested self-administered questionnaire.rnThe distribution of change in knowledge and attitude were computed. There was arnsignificant difference in change in knowledge between intervention and control groupsrn(t = -9.12, df = 720, p< 0.01), i.e. it was significantly high among the interventionrngroup. On the other hand, change in attitude was not significantly different amongrnintervention and control groups, even though there was an increase in attituderntowards VCT. The change in knowledge was significantly associated with some sociodemographic,rnsexual partner number, stigma and discriminatory attitude, and baselinernknowledge and attitude towards PLWHA (p< 0.05).rnThe study shows that it is possible to change the knowledge of the target grouprnthrough distributing pamphlets, and perhaps not the attitude. It is recommended tornconsider different factors such as socio-demographic, knowledge and attitude level ofrnthe audience before preparation and distribution of pamphlets to attain the intendedrnchange