rue or False H The formula used in repeated-measures t statistic is used with a

Question

rue or False H The formula used in repeated-measures t statistic is used with a matched-subjocts design even though the design uses two separate samples. T.One advantage of a repeated-measures design is that it typically requires fowor pants than an independent-measures design. When computing difference scores (D values) the sign of the difference(+or- is not nt. You need to record only the size of the difference K. Power is 1-B To get a big effect size, you should increase N. Power analysis are conducted before hypothesis testing begins In confidence intervals, there is a trade-off between precision and confidence.

Explanation / Answer

H. Repeated measures is also known as within subjects where 2 seperate scores are obtained for each individual element in the sample hence there are no different samples taken it is the separate score of the same sample elements . Hence False

I True as the number of participants remain the same only the sample measures are taken twice for a matched pair or repeated measure

J. The magnitude of the difference is important not the sign to find the variance hence TRUE

K Power is the probability of making a type 2 error so 1- beta hence TRUE

L. Effect sizes are independent of N even if we increase the N to more than ten times the effect size will still remain the same hence FALSE

M Power analysis measures the probability of making the type 2 error hence it can be done after the hyothesis testing is done hence FALSE

N We know that in a wider interval we have higher level of confidence hence there is a tradeoff between precision and confidence hence TRUE

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