Hi I need help with a problem

The accuracy of what measurement must be increased in order to increase the accuracy for the specific heat?

Thank You!

Four individual measurements go into determining the specific heat.

q = mass x specific heat x (Tfinal-Tinitial)
q is how much heat is added.
mass is mass of the substance.
Tfinal is the final T of the substance
Tinitial is the initial T of the substance.
An increase in accuracy in any of these measurements will increase the accuracy of the specific heat. I suspect that the most improvement would occur for Tfinal and Tinitial measurements.