A scientist is conducting a study to determine how well a new medication treats ear infections. The scientist tells the participants to put 10 drops in their infected ear each day. After two weeks, all participants' ear infections had healed.
Which of the following changes to the design of this study would most improve the ability to test if the new medication effectively treats ear infections?
Have participants use ear drops for only one week
Create a second group of participants with ear infections who do not use any ear drops
Create a second group of participants with ear infections who use 15 drops a day
Have participants put ear drops in both their infected ear and healthy ear
Share
Answer:
bhchsjshscsegeievcdccdshejeb
Explanation:
bhwhsvsvssjdjdidhddvehee ebheuebe review ejeneb eejje ffiff gh yvy ybu hn j uibvo fggybvu bi j k k k kg FB Ella an vin whom full u hhhhhhhhhhhhhjjjj f run f gh it work to g to lithium b ruko b brjss e e e r. Dr r r r r r d d d d d. Dr d d d d r r r r r ebene e end end e e e e e. e e e d. e d d d e e e e. e d d f f f. d d d d. d d d d. e e e. e e e e. e e e e. e e e r r r r. e e e e e. e e e e e. e e e. e. e e. e. e e e bebe e e e e e. d d d Dr d. d d d d d. d. d Dr r. r r dd