TY - GEN AU - Rajamanickam, M. TI - Statistical methods in psychological and educational research SN - 8170228026 U1 - 370.72 PY - 2001/// CY - New Delhi PB - Concept Publishing N1 - 1. The role of statistics in measurement 2. Frequency distributions 3. Measures of central tendencies 4. Measures of variability 5. The importance of the measures of skewness and kurtosis ER -