Question

participants included 385 individuals between the ages of 17 and 19 who completed a series of questionnaires once a year over a three - year period. problematic cell phone use was fairly stable across the transition from adolescence to emerging adulthood and was associated with depression in the future. 11. what research method was used in this study? naturalistic observation case study experiment correlational study 12. describe the key characteristics of the identified research method.

Explanation:

The study looks at the association between phone - use and future depression during the transition from adolescence to emerging adulthood. Since it examines the relationship between two variables without manipulating them, it is a correlational study. A correlational study aims to determine if and how two or more variables are related.

Answer:

1. Correlational Study
2. Key characteristics of a correlational study include: it examines relationships between variables (here, phone - use and future depression); it does not involve manipulation of variables by the researcher; data is often collected through surveys or questionnaires (as indicated by participants completing a series of questionnaires). It aims to establish a degree of association (positive, negative, or zero) between the variables under study.