Jace is interested in examining whether productivity is improved when people wear noise-cancelling headphones. To test his hypothesis he decides to bring people into a research laboratory and have them complete an anagram task while either wearing noise-cancelling headphones or not. Jace can _____ the independence and _____ the control of his study by conducting participants one at a time.
A) decrease; increase
B) increase; increase
C) decrease; decrease
D) increase; decrease

Question

Quizplus · Accepted Answer

By conducting participants one at a time, Jace can increase the independence of the observations, as each participant's experience is not influenced by others. He can also increase control over the study environment, ensuring that conditions are consistent for all participants.

Jace Is Interested in Examining Whether Productivity Is Improved When