Advanced Placement (AP), 05.11.2020 18:10, angie07253
A researcher wanted to study the effects of a certain chemical on cel growth. The chemical was to be applied at two different dowsed, high and low, to two different types cell types, strain A and strain B. Each combination of dose and cell type was to be replicated ten times. To have a consistency from one replicate to the next, the researcher decided to use four lab technicians. One technician would be assigned the high dose with strain A. A second would be assigned the low dose with the strain A. The third would be assigned the high dose with strain B. A fourth would be assigned the low dose with Strain B. The assignment of lab technician to the replicates for a combination of dose and cell type would be randomized. A statistician told the researcher that the design could be improved by controlling confounding variables. Which of the following is potentially a confounding variable in this study?
A. Chemical used
B. Lab Technician
C. Dose
D. Cell type
E. Cell growth
Answers: 3
Advanced Placement (AP), 23.06.2019 19:30, gafran
Want fre points & brainliest? answer this drivers ed question correctly and i got you : ) where do you not need to look before you change lanes or pass another vehicle? a. out your window toward your target lane b. in your rearview mirror at cars behind you c. over your shoulder, at your blind spot d. inside the vehicle you plan on passing
Answers: 2
Advanced Placement (AP), 24.06.2019 20:30, yorbal6109
Which presentation option is also known as a screen of a presentation?
Answers: 1
Advanced Placement (AP), 25.06.2019 19:30, bubster5820
Why is wilhem wundt considered the "father of psychology"?
Answers: 2
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