In this research, we aim to develop a 5-point likert scale and use it in an experimental application by performing its validity and reliability in order to measure the will perception of teenagers and adults. With this aim, firstly the items have been taken either in the same or changed way from various scales and an item pool including 61 items highly comprimising significant and probable testing areas have been formed. This item pool has been applied in a sample of 238 students at Erzincan University in the first stage. The last form Will Perception Scale (WPS) including 18 items determined as a result of the item analysis based on total-item correlation and the comparison of extreme groups has been applied in a sample of 238 new participants. Personal Information Form has also been applied in the second sample group. With the aim of testing the validity of the scale, Kaiser-Meyer-Olkin (KMO), Bartlett Test, Principal Components Analysis and Varimax Rotation Method have been employed. To test its reliability, Cronbach Alpha coefficients according to the factors have been calculated. As a result of the applications, the scale is seen to meet the requirements of validity and reliability. The factor loads of the items vary between 0.79, 128 and 0.81, 540. The lowest item total correlation of 18 items is 0.79, 128 (mean r= 0.80, 334); t values of these items vary between 2.049 and 0.32, 744. While the internal consistence of 61 items in the pool is a = 0.891, the internal consistence of 18 items in the scale is a = 0.918. The results obtained with the techniques such as item analysis, pearson correlation and factor analysis prove that all the validity and reliability indicators are high and as expected in literature, the scale can show that the highness of psychological symptom level, the lowness of willpower skill and the highness of paranormal beliefs and external locus of control in willpower skill are interrelating.