BSNL 2513 - Week 2

Readability Level

Conducted to determine the participants' ability to read and comprehend the items on an instrument.

1 multiple choice option

Reliability

Denotes the consistency of the measures it obtains of an attribute, concept, or situation in a study or clinical practice.

Reliability Testing

Examines the amount of random error in an instrument that is used in a study.

Stability Reliability Testing

Is concerned with the consistency of repeated measures of the same variable or attribute with the same scale or measurement method over time.

Poor Reliability

Less than 0.50

Moderate Reliability

0.50-0.75

Good Reliability

0.75-0.90

Excellent Reliability

Greater than 0.90

Equivalence Reliability

Compares two versions of the same scale or instrument or two observers measuring the same event.

Interrater (interobserver) reliability

Comparison of two observers.

2 multiple choice options

Alternate-Forms Reliability

Comparison of two versions of a test or scale.

Internal Consistency

Also known as homogeneity reliability testing.

1 multiple choice option

Cronbach's Alpha Coefficient

Is the most commonly used measure of internal reliability for scales with multiple items that are at least at the interval level of measurement.

2 multiple choice options

Validity

A measurement method this if it accurately reflects the concept it was developed to measure.

Content Validity

Examines the extent to which the measurement method includes all the major elements relevant to the concept being measured.

1 multiple choice option

Construct Validity

Focuses on determining whether the instrument actually measures the theoretical construct that is purports to measure.

1 multiple choice option

Convergent Validity

Comparing a newer instrument with an existing instrument that measures the same concept or construct.

2 multiple choice options

Divergent Validity

Scores from an existing instrument are correlated with the scores from an instrument measuring an opposite concept.

Validity from Factor Analysis

If the factor analysis results identify the essential elements of the concept to be measured by an instrument, then the validity of the instrument in strengthened.

Validity from Contrasting (Known) Groups

Is tested by identifying groups that are expected or known to have contrasting scores on an instrument and then asking the groups to complete the instrument.

1 multiple choice option

Successive Verification Validity

Is achieved when an instrument is used in several studies with a variety of study participants in various settings.

1 multiple choice option

Criterion-Related Validity

Is examined by using a study participant's score on an instrument or scale to infer his or her performance on a criterion (Predictive Validity and Concurrent Validity).

1 multiple choice option