I Have Questions, I Want You Check My Answers

Hi all ... I have questions, I want you check my answers My answer : Q 1 )The usual procedure for obtaining a test-retest is to give the same test to the same group on two different occasions, usually within a short period of time. Generally, the shorter the retest interval, the higher the because within a shorter span of time there are fewer reasons for an individual's score to changeCan be tested when we administer the same test to the same sample on two different occasions. This approach assumes that there is no substantial change in the construct being measured between the two occasions. The amount of time allowed between measures is critical. We know that if we measure the same thing twice that the correlation between the two observations will depend in part by how much time elapses between the two measurement occasions. The shorter the time gap, the higher the correlation; the longer the time gap, the lower the correlation. This is because the two observations are related over time -- the closer in time we get the more similar the factors that contribute to error. Since this correlation is the test-retest estimate of reliability, you can obtain considerably different estimates depending on the interval.• The most common La is : Volume
Q2 ) The themistor … Because It can convert the current and the range and accuracy is suitable
Q3 )
Ro=120 Vs = 5 V Q = 0.0039DR1 = Rt - R0 = R0.tVo = vs (DR1/R1+R2) =120(0.0039X120)Rt= 56016= (120 - 5 (-16)/170.16 = 0.7 V