טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentHava Koren-Israeli
SubjectThe Prediction Validity of Graphology as a Tool for
Selecting Employees according to Intelligence
DepartmentDepartment of Industrial Engineering and Management
Supervisor Dr. Vilnai-Yavetz Iris
Full Thesis text - in Hebrew Full thesis text - Hebrew Version


Abstract

Graphological evaluation is more economical and simpler to administer when compared to other methods for evaluating and selecting employment candidates. Therefore, despite the fact that there are only very few studies that confirm graphology as a valid employment profiling tool, it is rather abundant in use. This study re-examines the validity of graphology as a tool for selecting employees by examining the identification of intelligence.


The following criteria for validating graphology were chosen: a) The superiors' evaluation of the subordinates’ intelligence level; b) The superiors' evaluation of the level of their subordinates' occupational success. Graphological reports based on the handwritings of 35 employees were sampled and compared to the superiors' evaluations. The reports were used in selecting candidates for the job. All subjects work in managerial positions and high professional positions in a large food factory in northern Israel.


A strong positive correlation was found between the intelligence scores given by the graphologist and the cognitive intelligence scores given by the superiors. Positive correlation was also found between the intelligence scores given by the graphologist and the emotional intelligence scores given by the superiors. No correlation was found between the intelligence scores given by the graphologist and the occupational success scores given by the superiors. Additionally, no correlation was found between the cognitive intelligence scores given by the superiors and the occupational success scores.


The regression coefficients of the various intelligence evaluations predicting the evaluations of occupational performance were found to be insignificant, except for the emotional intelligence evaluation, given by the superiors, which was found to be a significant predicator of the occupational success evaluation.


From these findings it can be inferred that graphology evaluation of intelligence is valid in predicting intelligence evaluations by superiors but is not a valid predictor of occupational success.


The results of this study suggest that the justification to use graphological evaluation as a tool for selecting employees is limited. Further study is required in the field to discover which specific characteristics can be diagnosed well enough by graphology, and what is the meaning of these characteristics for qualitative and quantitative performance in different jobs.