Part 2: All Methods Booklet Flashcards
Which inferential test should a researcher use to decide whether a correlation is significant?
Spearman’s Rho test
Reliability
Whether something is consistent
The ability of a test or measurement to preform consistently over a number of occasions
Name the two main types of reliability
Internal
External
Internal reliability
How checked
How consistently a method measures with itself
Split half method
External reliability
How checked
How consistently a method measure over time or between people
Test retest or via inter rater reliability
Split half method
Involves splitting a test into two and having the same ps doing both half of the test
If two halves of the test provide similar results this would suggest that the test has internal reliability
Test retest method
Involves testing the same ps twice over a period of time in the same test
If the results are similar then that would suggest that the measuring device / test has external reliability
Inter rater reliability
What tests
How
External reliability in relation to interviews can also be assessed via inter rater reliability
Eg
If two researchers interviewing the same interviewee to produce approximately the same score then their scoring would have external reliability
Observation and reliability
Experimental method and reliability
Validity
Refers to whether something measures what it claims to measure
Interval validity
External validity
Face validity
Construct validity