5- Z Scores Flashcards
1
Q
Z- Scores
A
identify and describe the exact location of each score in a distribution
2
Q
Z formula
A
Z= (X- mean) / σ
3
Q
if every X value is transformed into a z-score, then the distribution of z-scores will have the following properties…
A
1) exact same shape as the original distribution
2) a mean of zero
3) standard deviation of 1
4
Q
advantage of standardizing distributions
A
makes it possible to compare different scores or different indivusals
5
Q
a typical research study begins with a _______ about ____________
A
a typical research study begins with a question about how a treatment will affect the individuals
