Choosing A Stat Test

Question 1

What must you consider when choosing a state test?

Answer 1

Diff or corr?

Experimental design

Level of measurement

Question 2

Diff vs corr

Answer 2

Correlation= relationship between 2 things

Diff= e.g more or better variable

Question 3

Experimental Design

Answer 3

Independent groups= each diff PPTS= only. Un related

RM= Same PPTS do both conditions

MP= Matched on certain characteristics

Question 4

Levels of measurement

Answer 4

Nominal= Categories, crude, uninformative.

Ordinal= ordered, ‘unsafe, lacks precision, more subjective (self-report techniques)

Interval= precise units, ‘safe’, standardised, objective