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45 Cards in this Set

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  • Back
How far on average the scores deviated from the mean.
The square root of the variance takes us back to the original unit of measurement and helps indicate the amount of variability.
Standard Deviation
Is necessary in order to establish validity, but not sufficient.
Two forms of a test that measure one domain, but use separate samples to do so.
Parallel Test Forms
The lower the error rate, the ______ the reliability?

Answer: Higher
Indication of how much a person's score might change upon retesting?
Standard Error of Measurement
Range of Group
Difficulty of Test
Length of Test
Factors Affecting Reliability
How well a test's tasks/items represent what experts consider to be the important knowledge, skills, and objectives of a particular domain.
Content Validity
The three C's?
Content, Criterion, and Construct
How well an instrument predicts certain behaviors.
Criterion Related Validity
Relevant, Reliable, Free from Bias, and Available/Practical.
Necessary qualities of a Good Criterion.
Convergent, Divergent (Discriminatory), Factor Analysis.
Types of Construct Validity.
What type of validiy is the following?
How well does this test predict the future?
Criterion Validity
What type of validity is the following?
How well a test represents a curriculum>
Content Validity
What type of validity is the following?
What scores on a test mean or tell us about a person?
Construct Validity
Shows how the items in a test intercorrelate and group together - people tend to answer items measuring the same construct similarly.
Factor Analysis
Content Bias, Internal Structure, Instrument/Criterion Relationships, Slope Bias, and Intercept Bias?
Types of Bias
A statistical method for detecting bias that looks at item difficulty for different groups?
Differential Item Functioning (DIF)
Which central tendency is the most frequently occurring score?
Which measure of central tendancy is most appropriate to use with nominal data?
The most reliable measure of variability for a sample.
Standard Deviation (the square root of the squared deviations from the mean)
A correlational coefficient of .89 can be described as:
Strong positive (.89 is sufficiently high and near 1.00 to indicate a strong positive correlation)
A type I error is a?
False Rejection
Likert Scales, which are typically used to measure attitudes, yield which type of measurement?
Reliability is to standard error of measurement as validity is to:
Error of estimate
Using achievement instruments with specific populations, it is important to:
use norm included instruments
The technique most closely associated with behavioral observations of individuals in a group task is:
The process of determining the amount, extent, or other category of a variable.
Refers to how much of an attribute a person has in a segment of knowledge.
Which is more reliable? Clinical or Statistical predictions?
Statistical because it is research based. (Clinical is based on experience, intuiton, and textbook knowledge making it a judgement.)
____________ presented a theme that genetic influence accounted for the majority of differences in test scores when races were compared. This prompted the genetic-environment issue of intelligence differences in races.
Arther Jensen
An organized pattern of behavior that brings about learning how to do things.
_______ test are those in which there is a question and alternatives from which to select an appropriate response.
Structured (Ex. Strong Interest Inventory)
________ tests provide a stimulus from which the respondent creates the answer from his/her frame of reference.
Unstructured (Ex. Rorschach and Thematic Apperception Test: TAT)
Makes no assumptions about trait being assessed.
Empirical construction or criterion construction
An error in receiving a high or low evaluation on all dimensions based upon some global impression usually passed on by another.
Halo effect
Type of scle differs from Likert Scale in that when respondent agrees with one statement the respondent he/she is in fact agreeing with all of the other items, which is milder.
Guttman Scale
The baseline of this curve is called a linear line and is expressed in z scores with a mean of zero and a standard deviation of one.
Normal Curve
A pictorial representation of two variables.
Scatterplot or Scattergram
A summarizing of a set of data thus tabulating, depicting, and describing a collection of data.
Descriptive Statistics
Statistics to make inferences about a population from researching a sample.
Inferential Statistics
Describes the middle of the distribution of scores.
Central Tendency
How scores spread themselves around the central measure and is often referred to as the spread of effect.
An expression of the relationship that exists between two independent variables.
That part of an objective test item that poses the question or sets the task along with options.
Stem and Leaf