Observational methods, case-study methods and survey methods.
Observational Method
With the observational method (sometimes referred to as field observation) animal and human behavior is closely observed. There are two main categories of the observational method — naturalistic observation and laboratory observation.
Case Study Method
Case study research involves an in-depth study of an individual or group of indviduals. Case studies often lead to testable hypotheses and allow us to study rare phenomena. Case studies should not be used to determine cause and effect, and they have limited use for making accurate predictions.
Survey Method
In survey method research, participants answer questions administered through interviews or questionnaires. After participants answer the questions, researchers describe the responses given. In order for the survey to be both reliable and valid it is important that the questions are constructed properly. Questions should be written so they are clear and easy to comprehend.
Answer:
a. worrying increases one's bodily arousal, which can prevent normal sleep
Explanation:
When one is worried their sleeping pattern will also be interrupted beaches your body does not relax and your mind is busy and not rested so you fail to reach the relaxed state that will lead to sleep .
The correct answer is UNICEF
Explanation: UNICEF stands for "United Nations Children's Fund". It is the only worldwide organization dedicated specifically to children.
UNICEF is a United Nations agency that aims to promote the defense of children's rights, help meet their basic needs and contribute to their full development.
Review by the US Supreme Court of the constitutional validity of a legislative act.(in the UK) a procedure by which a court can review an administrative action by a public body and (in England) secure a declaration, order, or award.plural noun: <span>judicial reviews</span>
