Sample Size Determination and Optimal Design of Simple Pretest-Posttest Experimental Designs using G*Power, PowerUpR, and PowerUp!

Pretest-posttest designs and measurement of change.

The article examines issues involved in comparing groups and measuring change with pretest and posttest data. Different pretest-posttest designs are presented in a manner that can help rehabilitation professionals to better understand and determine effects resulting from selected interventions. The reliability of gain scores in pretest-posttest measurement is also discussed in the context of re...

Six Sigma: Sample Size Determination and Simple Design of Experiments Short Examples Series using Risk Simulator

PowerUp!: A tool for calculating Minimum detectable effect sizes and minimum required sample sizes for experimental and quasi-experimental designs

This paper complements existing power analysis tools by offering tools to compute minimum detectable effect sizes (MDES) for existing studies and to estimate minimum required sample sizes (MRSS) for studies under design. The tools that accompany this paper support estimates of MDES or MSSR for 21 different study designs that include 14 random assignment designs (6 designs in which individuals a...

architecture and engineering of nanoscale sculptured thin films and determination of their properties

چکیده ندارد.

development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...