Imagine that in Dr. Schulenberg's study, he notes that all of the students do extremely well on the midterm exam. When he looks
at the results of the final exam, he notices that all the students' exam scores went down. Given this information, which of the following threats might be present in his study? Regression
Attrition
Maturation
Observer bias
Placebo effect
Explanation: Regression is the activity in which something returns to the state of low development.The measure of regression is seen when the stage of something reaches the previous level as compared to present.
The situation mentioned in the question also displays regression in the study because students have returned to the low stage regarding to marks in final exams as compared with mid-term exams.
Other options are incorrect because attrition is reduction in effectiveness of something, maturation is having matured state and observer bias is researching in bias manner. Placebo effect is the effect due to inert treatment with produces unknown consequences.
The spotlight effect is the thought which clicks in the mind of the person who assumes that they are noticed extensively by other people. This implies that the person feels himself to be at the center of the world where everyone notices every action of the person. Such type of effect is noticed when the person does any activity which is very unusual and uncommon.
The correct term to answer your question is Relational Database.
Explanation:
A relational database is a database specifically structured to recognize relations between stored items information and can be joined through common fields and the data can be easily stored in tables.
