02 Safety need refers to the protection of the organism from his enemies of the environment. These enemies may be 1. his fellow being 2. heat, cold or rain 3. all of the above 4. none of the above

04 In trial and error theory 1. success (learning) is obtained by chance 2. right responses are selected from among so many responses after repeated trials 3. the organism reaches to the point of success slowly 4. all of the above

06 A teacher, after preparing a question paper, checks whether the questions test specific testing objectives. He is concerned primarily about the questions paper's 1. content coverage 2. typology of questions 3. reliability 4. validity