Figure 1
The flow diagram is titled “Identification of studies via databases”. Three text boxes are arranged in a vertical series on the left, depicting three stages. From top to bottom, the text boxes are labeled as follows: “Identification”, “Screening”, and “Included”. The first text box in the “Identification” stage reads, “Studies identified from Databases n equals 154”. A rightward arrow points from the first text box to the second text box positioned directly on the right in the same stage. The text box reads, “Studies removed before screening: Duplicate records removed: n equals 27”. A downward arrow points from the first text box to the third, positioned directly below in the “Screening” stage. The text box reads, “Studies assessed for eligibility: Google Scholar n equals 52; Scopus n equals 34; Web of Science n equals 28; ERIC n equals 13; Total: n equals 127”. A rightward arrow points from the third text box to the fourth text box positioned directly on the right in the same stage. The text box reads, “Studies excluded: AI without leadership focus n equals 28; Technical or engineering studies n equals 26; Conceptual essays without empirical basis n equals 23”. A downward arrow points from the third text box to the fifth, positioned directly below in the “Included” stage. The text box reads, “Studies included in review n equals 50”.PRISMA flow diagram