Answer: Content validity
Explanation:
Content validity is defined as the process that indicates about content knowledge that a sample content should contain or was intended to have through measurement .
According to the question, students should question content validity of the test content .In this manner ,they can find the adequate content that should be present in test paper through measurement.
Other options are incorrect because face validity, construct validity and predictive validity does not define about knowledge domain that of any sample that test is measuring.Thus, the correct option is content validity.
Answer:
2.12
Explanation:
PED = % Change in Quantity demanded / % Change in price
✔️Price when quantify demanded was 8:
Substitute Q = 8 into P = 50 - 2Q
Thus:
P = 50 - 2(8)
P = 50 - 16
P = 34
✔️Price when quantify demanded was 12:
Substitute Q = 12 into P = 50 - 2Q
Thus:
P = 50 - 2(12)
P = 50 - 24
P = 26
✔️% change in price = (old price - new price)/old price × 100
Old price = 34
New price = 26
% change in price = (34 - 26)/34 × 100 ≈ 23.53 (2 d.p)
✔️% change in quantity demanded = (old quantity - new quantity)/old quantity × 100
Old quantity = 8
New quantity = 12
% change in quanty demanded = (8-12)/12 × 100 = 50%
✔️ Elasticity (PED) = 50/23.53 = 2.12 (2 d.p)
Marge's study is typical of the "Correlational" method of research.
In general, a correlational study refers to a quantitative technique for research in which you have at least 2 quantitative factors from a similar gathering of members, and you are endeavoring to decide whether there is a relationship between the 2 factors.
