Please help me with this psychology question

31] Retrieval or simply memory test is an example of using test recall.

32] t is referred to as serial position effect of short term memory.

Explanation:

In a test of memory when a person is able to memorize only the information heard at lat stage is known as serial position effect. A person is told all the names of presidents of world but when he asked he only told the last 15 names. That means he has not been able to memorize previously mentioned names.

In retrieval process, recall, recognition and relearning are three important stages. Retrieval is the process of recalling information that had been stored in long term memory. Sensory memory, short term memory and long term memory are the three type of memory.



Free-rider problem

Explanation:

Free-rider problem is known as a Collective goods problem. It is when an individual usually benefit from a collective good without giving a dime or paying a share of the cost to produce that good.

Individuals work hand in hand so as to achieving a collective goal in which is in everyone best interest. Every who pays, gains. But individuals who do not pay (free riders) also do benefit from it.

Free riders are usually stingy with thier money and loves to take on any opportunities that will not cost them any money