Types of procedures that could increase the validity of conclusions from experiements are ...
Single-blind procedures - the <em>subject does not know</em> which treatment they receive
Double Blind procedures - <em>neither </em>the experiementer or the subject know the treatments they receive
matched pairs experiements - used in experimental research in order for differen<em>t experimental conditions to be observed while being able to control for individual difference </em>by matching similar subjects or groups with each other.
experiments with a <em>control </em>and <em>lots of trials </em>and so fourth!
Reflection is like bouncing a tennis ball, and absorption is like water soaking into a paper towel.
Explanation:
So first of all a simile uses the words "like" or "as" to compare things. Reflection is like bouncing a tennis ball, and absorption is like water soaking into a paper towel.
The statement “force equals mass times acceleration” is Newton's second law of motion. It is a law rather than a theory because it states, rather than explains, the relationship between the variables.
