Fill in each blank with one of these terms: naturalistic observation, case studies, correlational research, positive correlation, negative correlation. Researchers have found that the more credit cards people have, the less money they tend to have in their savings accounts. These researchers have discovered a _________________ between the number of credit cards and the amount of savings.

First, let's explain each of the terms provided. - Naturalistic observation: A research method where researchers observe subjects in their natural environments without manipulating the situation. - Case studies: An in-depth exploration of a specific individual, group, or situation, often used for exploratory purposes. - Correlational research: A research method where researchers try to examine the relationships between variables without manipulating them. - Positive correlation: A relationship between two variables where an increase in one variable is associated with an increase in the other variable. - Negative correlation: A relationship between two variables where an increase in one variable is associated with a decrease in the other variable.

The given scenario states that researchers found that the more credit cards people have, the less money they tend to have in their savings accounts. This is a situation where an increase in one variable (number of credit cards) is associated with a decrease in another variable (amount of savings).

Based on our understanding of the terms and the scenario provided, the relationship between the number of credit cards and the amount of savings can be best described as a "negative correlation." When the number of credit cards increases, the amount of savings tends to decrease.

Researchers have found that the more credit cards people have, the less money they tend to have in their savings accounts. These researchers have discovered a negative correlation between the number of credit cards and the amount of savings.