Foundations of measurement (4)

Question 1

Level of measurement

Answer 1

Nominal, ordinal, interval, ratio

Question 2

reliability

Answer 2

consistency or stability of an observation

Question 3

True score theory

Answer 3

maintain that an observed score is the sum of two components true ability of the respondent and random error

Question 4

systematic error

Answer 4

caused by any factors that consistently affect measurement of the variable across the sample

Question 5

reducing measurement error

Answer 5

pilot test - get feedback
train interviewees 
double check the data 
use statistical procedures to adjust errors 
use multiple measures

Question 6

Theory of reliability

Answer 6

same observation over and over again