Explanation

A valid assessment measures exactly what it is intended to measure.

It is of utmost importance to ensure the validity of an assessment in the fields of education and psychology as:

It guarantees that the results obtained are both meaningful and reliable.

The significance of a valid assessment lies in the following aspects:

1. Measuring Intended Constructs

2. Reliability

3. Avoiding Bias

4. Improving Decision-Making

Explanation

The graph shows that Todd ate a significantly larger portion than Rick, then Rick 25% and Todd 75% is accurate.

Explanation

"Along the street" means the trees are planted following the direction or length of the street.

It correctly describes a linearly arranged placement beside the road.

Explanation

A neuron is the basic structural and functional unit of the nervous system

It often shown with a long axon, dendrites, and cell body.

It transmits electrical impulses in the body.

Explanation

A shared vision reflects the collective goals and values of all key stakeholders involved in the school’s success.

When community, leadership, teachers, and students contribute, it builds ownership, commitment, and unity toward school improvement.

Explanation

"3x" usually represents 3 rectangles (each representing x).

"+2" typically means 2 small unit squares (each representing 1).

So, a model showing 3 long bars and 2 small squares matches 3x + 2.

Explanation

"Across the road" correctly indicates movement from one side of the road to the other.

It fits the context of safety and direction before crossing.

Explanation

The initial population is 2¹⁶ insects.

If the population doubles, the new population will be 2 * 2¹⁶ = 2¹⁷.

Explanation

A covalent bond forms when two atoms share one or more pairs of electrons.

This type of bonding typically occurs between non-metal atoms to achieve stable electron configurations.

Explanation

The scale factor can be found by dividing the actual width by the width in the scale drawing. Actual width = 18 cm, scale width = 1.2 cm. Scale factor = Actual width / Scale width = 18 / 1.2 = 15.

The length in the scale drawing is 3.6 cm. Actual length = Scale length * Scale factor = 3.6 * 15 = 54 cm.