Question

question #5
what kind of experiment is shown in the picture?
randomly assign students to treatments
group 1 (30 students)
treatment 1 (no test review)
group 2 (30 students)
treatment 2 (test review)
compare exam results
simple random sample
matched pairs
randomized block design
completely randomized design

Explanation:

In a completely randomized design, subjects are randomly assigned to different treatment groups. Here, students are randomly assigned to Group 1 (Treatment 1: no test review) and Group 2 (Treatment 2: test review). There is no blocking (grouping based on a specific characteristic) or pairing (matching subjects). A simple random sample is about selecting a sample from a population, not about assigning to treatments. Matched pairs would involve pairing individuals. Randomized block design would have blocks (groups with a common characteristic) before random assignment.

Answer:

Completely Randomized Design