PSYC 210 FINAL PAPER FULL QUESTIONS
AND CORRECT ANSWERS EXPERT REVIEW
STUDY SHEET
●● pearson's r
Answer: correlation coefficient
variables' data at the equal-interval or ratio level
E(ZxZy)/N
●● types of correlations
Answer: positive (direct)
negative (indirect)
curvi-linear (variables can still be related)
none
●● positive correlation
Answer: direct
as one variable increases, the other increases
●● negative correlation
Answer: indirect
, as one variable increases, the other decreases
●● R square
Answer: the amount of variance explained by our predictor
●● p-value
Answer: significance
significant if less than .05 or 5%
chance of making a type 1 error
●● simple regression
Answer: prediction
using 1 variable to predict another
if 2 variables are correlated, we should be able to use one to predict the
other
assumes relationship can be explained with a straight line
●● predictor
Answer: x
iv
used to predict
AND CORRECT ANSWERS EXPERT REVIEW
STUDY SHEET
●● pearson's r
Answer: correlation coefficient
variables' data at the equal-interval or ratio level
E(ZxZy)/N
●● types of correlations
Answer: positive (direct)
negative (indirect)
curvi-linear (variables can still be related)
none
●● positive correlation
Answer: direct
as one variable increases, the other increases
●● negative correlation
Answer: indirect
, as one variable increases, the other decreases
●● R square
Answer: the amount of variance explained by our predictor
●● p-value
Answer: significance
significant if less than .05 or 5%
chance of making a type 1 error
●● simple regression
Answer: prediction
using 1 variable to predict another
if 2 variables are correlated, we should be able to use one to predict the
other
assumes relationship can be explained with a straight line
●● predictor
Answer: x
iv
used to predict
