A researcher hypothesizes that zylex, a new antidepressant, will affect concentration. It is known that scores on
Question:
A researcher hypothesizes that zylex, a new antidepressant, will affect concentration. It is known that scores on a standardized concentration test is normally distributed with a µ= 50 and a σ= 12. A random sample of n=16 participants, aged 19-35, are chosen from the State of New Jersey. The sample is put on a six month dosage plan of zylex. After six months, all the participants are given a standardized concentration test. The researcher records the data and calculates a sample mean of M=56. Are the data sufficient to conclude that the drug, zylex, does have an effect on concentration?
Based on the above research scenario, please answer the following questions:
What is the independent variable? ___________________
What is the dependent variable? ________________________
Research Methods Statistics and Applications
ISBN: 978-1452220185
1st edition
Authors: Kathrynn A. Adams, Eva Marie K. Lawrence