Is the degrees to which operational definitions reflect the true theoretical meaning of the variable. 1. validity 2. moderation 3. mediation 4. reliability 5. all of these

Validity

Explanation:

Validity or construct validity is the sufficiency of the operational meaning of factors.. It measures the extent to which the the operational meaning of a variable really mirrors the genuine hypothetical importance of the variable.  

Validity alludes to how much deductions can authentically be produced using the operationalizations in your investigation to the hypothetical builds on which those operationalizations were made.

validity is identified with generalization.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

the answer is b, have negligible mass