Lab Information 1 Flashcards
What do standardized scores do
Save time
Improve reliability by reducing measurement error
Facilitate coding and improves efficiency of coding
What is measurement error
Measured as the explained and unexplained variability
What is unexplained variability
Do we want to increase or decrease it
Variability in which we dont know how it occured
Decrease
What happens when unexplained variability is decreased
Reliability increases
What is a database
System for classifying and organising information
What does raw data represent
Represents the scores collected for the variables under investigation
Raw data should be free from
Formatting
Good data should be
Clean - free from error
Free of formatting
Ready for transfer across platforms