week 9 Flashcards
1
Q
self selection bias
A
- results of people who are more likely to reply are reported and imply that those results are valid
2
Q
response acquiescence
A
- tendency to agree with statements
3
Q
what is the option of dont know refered to as
A
DK alternative
4
Q
double barreled question
A
- asks for two responses at once
5
Q
survey biases
A
- double barreled question
- leading question
- response acquisition
6
Q
tips abt wording questions
A
- avoid jargon
- complete sentences
- positive/neutral phrased questions
- unbiased/balanced wording
- no aberrations/slang
7
Q
social desirability bias
A
- ppl answering how they think they should respond not how they actually feel
8
Q
types of surveys
A
- inperson interview
- mail writen surveys
- phone surveys
- online surveys
9
Q
correlation coefficient scale
A
- +1= perfect positive correlation
- 0 = no correlation
- -1 = perfect negative correlation
- closer the coefficient is to one the stronger the relationship
10
Q
coefficient of determination
A
- square of pearson’s r
- always positive
11
Q
regression analysis
A
- predictions based off of correlations
12
Q
regression line
A
- makes predictions
- line of best fit
- best summarization of points on a scattrerplot
13
Q
in regression analysis, regression equation is used to predict value for Y based on given value of X. Y is referred to as _____ variable and X the ____ variable
A
Criterion, predictor
14
Q
what is the equation showing:
Y=a+b1X1 +b2X2 +…+bnXn
A
multiple regression analysis
15
Q
what is the problem where the correlation could be either way
A
directionality problem
