Answer: Wendy did not use random assignment
Explanation: Wendy's failure to randomly assign participants or subject to his research will pose a threat to the internal validity of his study. The internal validity of a study simply refers to the structure of an experiment and it's trustworthiness in establishing causal relationship between the applied treatment used a study and the observed outcome. Wendy's decision to ignore random assignment and opt for a manual assignment of subject to each treatment will pose a threat to the structure of his study and hence the establishment of a causal relationship between the treatment t and outcome of the study.
Biogas is a renewable, as well as a clean, source of energy. Biogas plants significantly curb the greenhouse effect: the plants lower methane emissions by capturing this harmful gas and using it as fuel. Biogas generation helps cut reliance on the use of fossil fuels, such as oil and coal.
Service Learning is doing something to learn
Community Service is doing something to improve
Answer:
The term “religious language” refers to statements or claims made about God or gods. Here is a typical philosophical problem of religious language.
Answer:The decline of feudalism and the movement of people and ideas made the Renaissance a time of great advances in western history. Inventions such as the printing press and fast production of books helped disseminate knowledge of ancient Greece and Rome and of science and medicine.
Explanation:
