Chapter 8

Question 0

Content related evidence of validity

Answer 0

Refers to the content and format of the instrument. Concerned with the adequacy of the sampling

Question 1

Validity

Answer 1

Refers to the appropriateness, correctness, meaningfulness, and usefulness of the specific inferences researchers make based on the data they collect

Question 2

Criterion related evidence of validity

Answer 2

Refers to the relationship between scores obtained using the instrumented scores obtained using one or more other instruments or measures. Often called a criterion. Usually compares the performance on one instrument the one being validated with performance on some other, independent criterion.

Question 3

Construct related evidence of validity

Answer 3

Refers to the nature of the psychological construct a characteristic being measured by the instrument.

Question 4

Predictive validity

Answer 4

To allow time interval to elapse between administration of the instrument and obtaining the criterion scores

Question 5

Concurrent validity

Answer 5

When instrument data and criterion data are gathered at nearly the same time, and the results are compared

Question 6

Correlation coefficient

Answer 6

Symbolized by the letter are. Indicates the degree of relationship that exists between the scores individuals obtain onto instruments

Question 7

Validity coefficient

Answer 7

When a correlation coefficient is used to describe the relationship between a set of scores obtained by the same group of individuals on a particular instrument underscores in some criterion measure

Question 8

Expectancy table

Answer 8

A two way charge, with the predictor categories listed down the left-hand side of the chart of the criterion categories listed horizontally along the top of the chart.

Question 9

Construct related evidence of validity

Answer 9

An attempt to collect a variety of different types of evidence as in the more the more very the better, that will allow researchers to make warranted Inferences.

Question 10

Reliability

Answer 10

Refers to the consistency of the scores obtained and how consistent they are for each individual from one administration of an instrument to another and from one set of items.

Question 11

Reliability coefficient

Answer 11

Another application of the correlation coefficient. Expresses the relationship, but this time in between scores of the same individuals on the same instrument the two different times, or on two parts of the same instrument.

Question 12

Test retest method

Answer 12

Involves administering the same text twice to the same group after certain time interval has elapsed

Question 13

Equivalent forms method

Answer 13

Two different but equivalent forms of an instrument I administered to the same could’ve been the vigil’s during the same period of time. Also called alternate or parallel.

Question 14

Internal consistency methods

Answer 14

Require only a single administration of an instrument

Question 15

Split half procedure

Answer 15

Involves scoring two hats, usually ought items versus even items, the test separately for each person in a calculating correlation coefficient for the two sets of scores

Question 16

Kuder Richardson approach

Answer 16

KR 21 reliability coefficient =

K/K-1[1-(M(K-M)/K(SD^2))]

Question 17

Alpha coefficient

Answer 17

Frequently called Cornbach Alpha. A general form of the KR20 formula to be used in calculating the reliability of items that are not scored right versus wrong.

Question 18

Standard error of measurement (SEMeas)

Answer 18

An index that shows the extent to which a measurement Woodberry under changed circumstances. For example the amount of measurement error.