47. Which of the following data collection techniques best represents a true experimental design?
Answer: C
Assigning fifth-grade students to two groups with one group participating in a self-esteem group and the other group completing classroom activities
This option exemplifies a true experimental design because it involves random assignment of participants to different groups, allowing for the comparison of outcomes between the two different interventions.
A) Collecting student satisfaction data after a classroom guidance lesson
This option does not represent a true experimental design as it involves merely gathering subjective feedback without any manipulation of variables or assignment of participants to different treatment groups.
B) Comparing scores on a social and emotional learning (SEL) inventory between ninth- and tenth-grade students
This approach is more observational and correlational rather than experimental. It compares two existing groups without any random assignment or manipulation of conditions, which is essential for true experimental designs.
C) Assigning fifth-grade students to two groups with one group participating in a self-esteem group and the other group completing classroom activities
This option is the correct choice as it includes random assignment to groups, which is a fundamental characteristic of true experimental designs. By manipulating the independent variable (the type of intervention), it allows for a clearer cause-and-effect relationship to be established.
D) Following a single group of students across a semester to evaluate academic progress
While this option suggests monitoring progress, it lacks a control group and random assignment, thus failing to meet the criteria for a true experimental design. It is more in line with a longitudinal study rather than an experimental approach.
Conclusion
Option C is definitively the correct answer as it adheres to the principles of true experimental design by including random assignment and manipulation of variables. The other options fail to meet these criteria, making them inappropriate for establishing causal relationships in educational research.