The objective of this paper is to determine the validity and reliability of an originally created questionnaire as an instrument to develop an understanding of secondary school teachers' knowledge on information literacy and practices implemented with developing student's information literacy skills in Hungary, Poland, and Lithuania. This research will support a research project that aims the harmonisation of various theories of information literacy with the proper application of information literacy to public (K12) education. This paper presents a pilot survey among Lithuanian teachers on a sample of 102 participants in the spring of 2018. We gathered data for this study using a computer-assisted web interviewing (CAWI) technique and administered an online survey using the 1KA.SI web survey tool. The collected data was analysed by IBM SPSS Statistics ver. 19. Internal consistency of the questionnaire measured by Cronbach's alpha coefficient. Scale and construct validity evaluated using Principal components analysis with Varimax Rotation. The authors feel assured in using the questionnaire for the wider scope survey.