Instrumentation, Validity & Reliability

Instrumentation refers to the entire process of statistical investigation to describe the information contained in many scores with just a few indices.

• True

• False

Some of criterion of good instrument are validity (defensibility), reliability (consistency), objectivity (absence of subjective judgments), and usability (practicality).

• True

• False

In educational research, there are three sources of information. One of them is the researcher can get it from themselves, with little or no involvement of other people.

• True

• False

Three main types of evidence of validity are (1) content-related evidence; (2) criterion related evidence; and (3) construct-related evidence.

• True

• False

Reliability coefficient expresses the relationship between scores of the same individuals on two different instruments.

• True

• False

Objective test (such as multiple-choice, true-false, matching, or short answer); questionnaire, interviews schedule, rating test, and checklist are categorized as...

• Performance instruments

• Researcher-completed instruments

• Written-response instruments

• Subject-completed instruments

A rating (scale) is a measured judgment of some sort. Below are some forms of rating scale, except...

• Product rating scales

• Graphic rating scales

• Numerical rating scales

• Categorical rating scales

…. is a subject-completed instruments, which the respondent will answer questions most commonly in writing or marking an answer sheet.

• Self-checklist

• Questionnaire

• Attitude scales

• Achievement tests

The measurement in attitude scales in which the subject circle the words and numbers that best represents how they feel about the topic asked or stated is…

• Likert scale

• Semantic differential

• Pictorial attitude

• Personality inventory

There are four types of measurement scales: nominal, ordinal, interval, and ratio. The one in which the researcher assign numerical code for each different category is...

• Interval

• Ratio

• Ordinal

• Nominal