See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 questions from this quiz
Whether two variables are related
More revision hours & higher test scores
One variable increases, other decreases
Can't tell which variable causes which
An unmeasured variable affects both
+1 and -1
For correlations with ordinal data
5% probability results are due to chance
Equal or exceed the critical value
Visually identify variable relationships
Select your subjects, and get access to A+ resources today.