Question

To ensure reliability of lab measurements and results, you should:

have the same person make the measurements in repeated trials.

allow different members of a lab group to make the measurements in repeated trials.

use the same lab method, but with different chemicals in repeated trials.

allow each member of a lab group to make a single measurement, then combine the measurements at the end of the lab.

Answer 1

A: Only if everything else is the same throughout the experiments
B: Does every person read things the same way?
C: If you do the same trial but with different materials, would you get the same results?
D: ...

(Wot)

Answer 2

allow different members aka the 2nd one

Answer 3

No direct answers please! :)

Answer 4

i am no sure b or D

Answer 5

b

Answer 6

NO DIRECT ANSWERS, PLEASE ☻

Answer 7

I agree with @kittiwitti1

Answer 8

Why would you think B, or D? Let's hear your reasoning o:

Answer 9

Anything works. Take a wild guess, you might get it right xD

Answer 10

If you have the same person make the measurements in repeated trials.
how can we know if that person is doing it correctly? What if he gets tired?

If you use the same lab method, but with different chemicals in repeated trials.
How does different Chemicals make it more accurate?

Which leaves B and D.

You should allow different members of a lab group to make the measurements in repeated trials. Should work because there are many people.

If you allow each member of a lab group to make a single measurement, then combine the measurements at the end of the lab. That would probably be the best :)

Answer 11

So maybe the best option is D.

Answer 12

Well? What do you have to say to what I said?

Answer 13

@kittiwitti1

Answer 14

Sorry. I was called away from the computer

Answer 15

But yes, I believe D is the better option as averaging the results of multiple people is more reliable.

Answer 16

It helps find a common ground for measurements.

Answer 17

Thanks!

Answer 18

np