https://ftp.idu.ac.id/wp-content/uploads/ebook/ip/BUKU%20MANAJEMEN%20ORGANISASI/An%20Introduction%20to%20Industrial%20and%20Organizational%20Psychology,%204th%20Edition%20(%20PDFDrive%20).pdf
... old, tested or untested, likely to be effective or ineffective. Second ... collection and analysis of data, and a logical connection between the data ...