. He argues that a research instrument must be both consistent (reliable) and accurate in measuring its intended target (valid) to produce credible scientific results. Scientific Process
(like the F-table or R-table) necessary for data analysis. saifuddin azwar metode penelitian pdf
Once you have the book (or PDF) in hand, read it actively. Highlight the sections on operational variables and reliability. Apply the principles to your own proposal. That is how you move from searching for a file to becoming a true researcher. saifuddin azwar metode penelitian pdf