Answer to Question 1
4
Rationale 1: Comparative studies examine the differences between intact groups on some dependent variable of interest.
Rationale 2: In a one-shot case study, a single group is exposed to an experimental treatment and observed after the treatment.
Rationale 3: In a time-series design, the researcher periodically observes or measures the subjects. The experimental treatment is administered between two of the observations.
Rationale 4: Survey design is used to gather data by questionnaire from smaller numbers to represent data indicative of a larger population.
Global Rationale:
Answer to Question 2
2
Rationale 1: Field studies are studies that occur in natural or real-life settings.
Rationale 2: Methodological studies are conducted to develop, test, and evaluate research instruments and methods.
Rationale 3: Secondary analysis studies utilize and analyze data gathered in other studies in order to test new hypotheses or examine new research questions.
Rationale 4: Ex post facto studies look at differences among groups in which some independent variable has occurred naturally.
Global Rationale:
The formation of a chimeric gene that is found in people with certain forms of leukemia.
Albatrosses brood young chicks until they are large enough to thermoregulate.
Large white butterfly egg
Research Methods
One of the rats in the research reported on BioFoods.
Recent research suggests that zinc lozenges and nasal gels may help reduce the severity