Final answer:
The Y maze test measures spatial memory and learning abilities in rodents, typically using quantitative observations such as the time taken to complete the maze. In experiments, scent can be used as an explanatory variable, affecting this time. Other information provided illustrates the difference between qualitative and quantitative observations, and between raw data and descriptive statistics.
Step-by-step explanation:
The Y maze test is a behavioral assay used in biological research to measure the spatial memory and learning abilities of rodents, typically mice and rats. The quantity measured in a Y maze test can vary depending on the specific objectives of the experiment. For instance, the time it takes for an animal to complete the maze could be recorded, which would be considered a quantitative observation. If we look at the solution provided, we see that scent is the explanatory variable, which affects the time (quantitative response variable) taken to complete the maze. There are two treatments for this experiment: floral-scented masks and unscented masks.
In relation to the other questions provided:
- A. The energy level of the mice treated with the drug would be a qualitative observation because it describes a characteristic that cannot be measured with a number.
- B. The size of the tumors at the end of the study is quantitative data because it can be measured and expressed numerically.
- C. The size of each tumor would be considered raw data because it is the actual measurements collected during the experiment before any analysis or manipulation.