When researchers replaced a quarter of the water, wrestling and
other aggressive behavior immediately increased as the fish sought to reestablish a hierarchy, they report in the current issue of Applied Animal Behavior Science.
Aggressive Child defiant, demands must be met
immediately, disobedient, easily frustrated, easily jealous, gets into many fights, hits
others, angry moods, punishment doesn't change his / her
behavior, screams a lot, selfish or won't share, sudden changes in mood or feelings, temper tantrums or hot temper, unusually loud, whining (15 items, each rated as «often true,» «sometimes true,» or «never true»; Cronbach α =.85)