Exam 9: Measurement and Scaling

Likert scale analysis can be conducted on an item- by- item basis (profile analysis).

A construct is the theory being measured.

Systematic sources of error do have an adverse impact on reliability because they affect the measurement in a constant way and do not lead to inconsistency.

Deciding whether to present scales as vertical or horizontal is related to which of the non- comparative itemized rating scale decisions?

A _ is a seven point rating scale with endpoints associated with bipolar labels that have semantic meaning.

Reliability can be defined as the extent to which measures are free from random error, X_R.

is an approach for assessing the internal consistency of the set of items when several items are summated in order to form a total score for the scale.

With alternative forms reliability, a low correlation may reflect either an unreliable scale or nonequivalent forms.

The Likert scale is a balanced rating scale with an odd number of categories and a neutral point.

X_O = X_T + X_S + X_R In the true score model shown above, X_T represents .

Which scale is not an itemized rating scale (Table 9.1 in the text)?

In alternative- forms reliability, the same respondents are measured at two different times with an equivalent scale form being administered each time.

The scale descriptors "very bad," "bad," "neither bad nor good," "good," and "very good" are commonly used when studying the construct (Table 9.3 in the text).

Which of the following is not a problem with alternative- forms reliability?

Reliability refers to the extent to which a scale produces valid results if repeated measurements are made.

In , the degree of similarity between two measurements is determined by computing a correlation coefficient. The higher the correlation coefficient, the greater the reliability.

Typically, each Likert scale item has seven response categories, ranging from "strongly disagree" to "strongly agree."

The scale development process is an iterative one.

is assessed when the data on the scale being evaluated on the criterion variables are collected at the same time.

is the a type of validity that assesses the relationship between theoretical constructs. It seeks to confirm significant correlations between the constructs as predicted by theory.