Looks like no one added any tags here yet for you.
Reliablility
3+ trials, Increased sample size, Repetition
Validity
Controlling variables
Accuracy
Using appropriate measuring equipment, Taking care when measuring
Limitations
E.g. Only females were studied.
Line graph
For continuous data, "numbers and numbers"
Bar graph
For discrete data, categories
Describe trend
The graph shows that there has been a ___ in the number of...