Answer: Economic history is the academic study of economies or economic events of the past. Research is conducted using a combination of historical methods, statistical methods and the application of economic theory to historical situations and institutions.
Explanation:
Answer:
Fixed interval, fixed ratio
Explanation:
<u>Fixed interval schedule: </u>
The main motto of the reinforcement schedule is to motivate the behavior. In a fixed interval of time, the behavior is motivated after passing a fixed time but the interval of time is always fixed.
For example, the behavior is reinforced after 5 seconds, the second reinforced will be given after 5 seconds when the response does not occur.
<u>Fixed ratio schedules:
</u>
In this schedule, the behavior is reinforced after a certain fixed response. This schedule contains a fixed number of responses.
For example, if a rat is pressing the lever but if rat pressing the lever 7 times then will get reinforcement that is fixed ratio schedule.
According to Freud, the last part of the human mind to develop at ages 2 or 3 is the cognitive development or their social cognition wherein children interacts with other people and to see things from their own point of view. It tackles more about a child's feelings, thoughts, wants and motives.
<span>Amenorrhea. It is a phenomenon seen in women. It is the condition where the menstration becomes absent. It is mainly due to the low level of fat. since the athletes undergoes severe body activities there will be reduced level of fat.</span>
