Does the following example represent anindependent measures designor arepeated measures design?

An experiment was conducted to evaluate the effects of medication used to control ADHD between a sample of individuals 17 years-old and below and a sample of individuals 18 years-old and above.

When a research study is defined as a "double-blind" study (which is often times done to test pharmaceuticals), what does that mean or say about the study?

For a one-tailed problem with an alpha level of .01, the critical region makes up________% of the distribution while the null region makes up______% of the distribution.

Bothindependent measures designandrepeated measures designcan be used forboth t-tests and ANOVA. --- True or False

When usingthePearson-r,once you have completed your hypothesis testing, you can establish a cause-and-effect relationship. --- True or False