This Is Not the Advantage of Observation Method

question 15

Multiple Choice

This is not the advantage of observation method.

• A) It can be costly.
• B) no interviewer biases
• C) no interference with the variables studied
• D) more objective and accurate

---

Definitions:

Horizontal Distance

Represents the straight-line distance between two points on a plane, measured along a line parallel to the horizontal axis.

Ground

Often refers to the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.

Perimeter

The total distance around the edge of a geometric figure or shape.

Rectangle

A four-sided flat shape with straight sides where every interior angle is a right angle (90 degrees).