Final answer:
Workplace violence predictors and targets include warning signs, predictors from a study by Greenberg & Barling (1999), and negative job situations.
Explanation:
Warning signs often precede workplace violence, including intimidating behavior, threats, sabotaging equipment, or radical changes in behavior.
Greenberg & Barling (1999) found predictors of workplace violence against different targets - aggression against coworkers, supervisors, or subordinates.
Individuals unexpectedly experiencing negative job situations, such as being unexpectedly fired, are more likely to commit workplace violence.
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