The flow diagram shows a vertical sequence of rectangular text boxes connected by downward arrows. The top box is labeled “Initial database searches (n equals 180)”, followed by a box labeled “After removing duplicates (n equals 150)”. Below it, a box is labeled “Title or Abstract screening (n equals 95)”, followed by a box labeled “Full-text assessment (n equals 65)”. The final large box at the bottom contains multiple lines of text reading “Age Discrimination or Ageism (n equals 15)”, “Bystander or Witnessing (n equals 7)”, “Social Identity or Group Processes (n equals 16)”, “Organizational Climate or Diversity (n equals 10)”, and “Intergenerational or Age Diversity (n equals 15)”, followed by the text “Total sources synthesized: 63”.
Literature selection process. Source: Authors' own work