Match the followings:
| A. Experimental Research | I. Studies that involve the collection of data from different individuals at a single point in time. |
| B. Descriptive Research | II. Research that aims to systematically describe a situation, problem, or phenomenon. |
| C. Cross-Sectional Research | III. Research that involves manipulating one or more variables to observe their effect on another variable. |
| D Longitudinal Research | IV Studies in which data are collected from the same subjects over a long period of time. |
1
A-I, B-II, C-III, D-IV
2
A-III, B-II, C-IV, D-I
3
A-IV, B-III, C-II, D-I
4
A-III, B-II, C-I, D-IV