Validity and Reliability

Refers to the level of consistency of an instrument and the degree to which the same results are obtained when the instrument is used repeatedly with the same individuals or group.

• Validity

• Reliability

• Variance

• Stabilization

Do you need to increase or decrease the number of questions on a test to increase reliability?

• increase

• decrease

Obtaining similar scores for the same group of people form repeatedly using the same instrument over and over is an indication of the instrument's ________.

• Standar Error of Measurement

• Test Norms

• Reliability

• Validity

This is an example of...

• Reliable but Not Valid

• Valid but Not Reliable

• Neither Valid nor Reliable

• Valid and Reliable

The degree to which an assessment accurately assesses the concept and/or skill we are attempting to measure.

• Reliability

• Validity

• Error Margin

The degree to which your assessment is free of random error is...

• Reliability

• Validity

• Error Margin

The extent to which the content of a test matches the instructional objectives

• Content Validity

• Construct Validity

• Criterion Validity

A research instrument can be reliable, but not valid. True or False?

• True

• False

Validity is a concept that... (choose the best answer)

• Measures the consistency of the measurement taken under the study.

• Covers the the full range of the issue set for the study

• Measures the accuracy of the concept that it supposes to measure.

It is important for teacher to understand the concept of validity because:

• Teachers should consider more than one learning objective across other subject when assessing students.

• Teachers must understand that any created assessment should accurately measure what it is intended to measure.

• It does not matter because they do not create any assessments.