A streak plate-streak shows the true color of a mineral. Photo by Patrick Laird Â©. The streak of a mineral is the true color of the mineral and is quiet helpful in identifying minerals. It is easiest to rub the mineral across a streak plate in order to view the powdered residue (streak). The best streak plates are unglazed white porcelain tiles.
Rule-governed behavior. â¢ Behavior is primarily controlled by a verbal description. of a contingency of reinforcement or punishment. â¢ The description usually describes the behavior, the SD. for this behavior and the typical consequence for this. behavior in thebehavior in the presence of the SD.
According to this model, Type A behavior is essentially a coping response used to counter the threat of actual or potential loss of control. When Type As detect possible indications of loss of control, they immediately react by increasing their efforts to maintain or regain control.