Data analysis
For data analysis, the researchers used computer support for arranging data by SPSS for Windows Computer
Program to calculate for statistical values as follows:
The tally of frequency and percentage for analyzing background information of the respondents as samples. The analysis of Mean value and Standard Deviation for analyzing level of practice leadership.
The different testing of Mean value from LPI-Self and LPI-Observer by using t-test independent and F-test based on the case of classified variables (Chusri Wongrattana, 2001).