True or False: Adult, infant, and child manikins are needed for CPR skill practice sessions during a StarGuard course according to the student-manikin ratio.

The statement is true because effective CPR training requires the use of adult, infant, and child manikins to ensure that learners develop the skills necessary to respond appropriately to different age groups in emergency situations. Each type of manikin mimics the physiological characteristics of the respective age group, allowing instructors to teach students the variations in techniques and considerations needed for performing CPR on adults, infants, and children.

For instance, the size and development stage of an infant or child differ significantly from that of an adult, which affects the compression depth, hand placement, and technique used during resuscitation efforts. Including all three types of manikins in training sessions helps to prepare students for real-life scenarios they may encounter, thus reinforcing the importance of being adaptable in their life-saving interventions.

The other choices, while options, do not include the comprehensive approach necessary for effective CPR training. Using only a single type of manikin would limit the learners' ability to practice the different techniques required for various age groups.