Mike wants to find out whether campers prefer cotton or nylon sleeping bags. He asks a group of female campers to try both nylon and cotton sleeping bags. The sleeping bags were rated for softness and warmth. Mike intends to generalize the findings to apply to all campers. What is the confounding variable in Mike's experiment?
A. sleeping bags
B. the gender of the campers
C. cotton or nylon material
D. softness
Answer: B
You might also like to view...
A study finds that 100 percent of 20-year-olds, 70 percent of 40-year-olds, and only 40 percent of 60-year-olds are able to detect the scent of a single rotten egg in a 10- by 10-foot room. A developmental psychologist would most likely explain this change in terms of a(n)
a. Decrease in olfactory sensory threshold b. Increase in olfactory sensory threshold c. Decrease in cross-modality perception d. Increase in cross-modality perception
What is the main determining factor with regard to whether and when an older adult retires?
A. financial resources B. reaching the age of 65 C. whether a spouse retires D. companies "forcing" retirement to make room for younger workers
Kevin was born with the most widely known chromosome disorder which is what syndrome?
A. Prader-Willi B. Klinefelter C. Down D. Turner
Which statement is LEAST applicable to Vygotsky's sociocultural theory?
a. Cooperative interactions with skilled tutors are helpful. b. Variations in cultural influences are acknowledged. c. Developmental universals are sought and identified. d. Scaffolding assists the child with difficult tasks.