Answer:
An observational study of an association between two variables.
Explanation:
In the given scenario, it is an observational study of an association between two variables. The variables being :
- Explanatory variable (independant variable / predictor variable) may explain or influence changes in a response variable.
- Response variable (dependant variable) measures an outcome of a study.
Observational study observes individuals and records variables but doesn't attempt to influence the response (does not impose a treatment). It allows the researcher to directly observed the behavior of inteest rather than rely on the subject's self-descriptions (Survey) thus allowing the researcher to study the subject in its natural environment, thus removing the potentiallybased effect of the unnatural laboratory setting on the subject's performance.
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Answer: They are likely to remember the first few items most accurately because of the PRIMACY EFFECT.
Explanation: The PRIMACY EFFECT can be defined as the ability to remember the first items presented in a list.
The primacy effect is derived from the broader definition known as the Serial-position effect which describes a person's ability to recall the first and last items in a series best, and the middle items worst. The term was coined by Hermann Ebbinghaus.
