Barter system- A method of exchange when no money is involved.
B and C can't be the answers because they are not exchanging anything.
D can't be the answer either because there is money involved.
So your answer is A) You trade an apple for a banana at school. because you are exchanging something with someone for something else thats not money.
Hope this Helps!!
They use the design of Nonexperimental Research.
<h3><u>What is Nonexperimental research?</u></h3>
- Research is defined as the creation of new knowledge and/or the use of existing knowledge in a new and creative way so as to generate new concepts, methodologies and understandings. This could include synthesis and analysis of previous research to the extent that it leads to new and creative outcomes.
- Nonexperimental research is research that lacks the manipulation of an independent variable, random assignment of participants to conditions or orders of conditions, or both. In a sense, it is unfair to define this large and diverse set of approaches collectively by what they are not.
Examples of Nonexperimental research.
- Commonly, non-experimental studies are purely observational and the results intended to be purely descriptive. For example, an investigator may be interested in the aver- age age, sex, most common diagnoses, and other characteristics of pediatric patients being transported by air.
To know more about nonexperimental research, check the following.
brainly.com/question/11932651
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Answer:
The answer is conventional reasoning.
Explanation:
Lawrence Kohlberg's stages of moral development are considered an adaptation concerning a psychological theory that was established by psychologist Jean Piaget. Kohlberg also began to work in aspects related to this topic in 1958 and he continued studying it throughout his life.
The conventional level of moral reasoning is usually seen in adolescents and adults. Reasoning in a conventional way implies to judge actions' morality through the comparisons between them and the aspects related to views and expectations in society. An important characteristic concerning conventional morality consists of the acceptance of society's conventions about what is wrong and what is right.
Yes, traveling in groups of two or more affects the independence assumption.
The probability that the whole group shows up is 0.8 and that the group does not show up is 0.2.
