“…The mean score of all articles was 2.9 on the scale from 1 to 5 based on the depth, complexity, and multi-dimensionality of the measures used. In total, 10 studies scored a “1” [ 6 , 36 , 37 , 66 , 67 , 68 , 69 , 104 , 111 , 112 ]; 29 scored a “2”, indicating the use of 1–2 basic questions about identity [ 42 , 51 , 52 , 53 , 54 , 60 , 70 , 71 , 72 , 84 , 85 , 87 , 88 , 96 , 97 , 100 , 102 , 103 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 139 ]; 30 received a score of “3” for their use of a common but short and non-complex identity instrument [ 29 , 33 , 36 , 39 , 40 , 47 , 49 , 62 , 73 , 74 ,…”