CDO 340 Ch 3
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outside of language context.
Advantages of standardized tests
- easy to measure
- get an objective score
- we can use them to eliminate unwanted behaviors
- the goal is for us to test only the desired construct.
Purpose of Standardizaed Test
- Show that a child is significantly different from norming sample
- Establish eligibility for treatment services
- Examine classes of behaviors
- Narrow down areas to evaluate further
- Alerts broad areas of need for intervention
- A well constructed test allows for these meaningful differences between that tested child and the norms
Characteristics of Useful
Standardized Tests with Preschoolers
- Engaging, age-appropriate test ,materials
- Clear picture stimuli
- Guidance in scoring and administration
- Sensitive to cultural differences
- Psychometrically sound
Psychometrically Sound Tools:
- Predictive Validity – how well a child will do if the test is given on another day.
- These tests get you in the ball park but not tell you exactly.
- The test must match the representativeness of the child.
- 1.Adequate description of standardized sample
- 2.Sufficiently large standardized sample
- 3.Item analysis
- 4.Means & standard deviations of performance norms
- 5.Proof of concurrent validity
- 6.Predictive validity
- 7.Test-retest reliability
- 8.Interexaminer reliability
- 9.Adequate description of test administration procedures
- 10.Description of tester qualifications
What Do Standardized Tests
Not Tell Us?
- Do not pinpoint the specific deficiencies
- Typically do not contain many samples of a particular construct
- Do not give us all of the information we need for remedial planning
- Do not account for complexity of language
- Do not give us language performance in authentic communication
- Do not easily accommodate differences
Choosing Your Standardized Tests: Some Considerations
- Not any test will do
- Get the most recent version
- Match test to child’s needs
- Test comprehension & expression
- Understand the testing conventions
- Learn accurate basal & ceiling
- Test the appropriate age range
- Ensure the child understands the instructions
- Watch for fatigue
- Minimize distractions
- Offer choice of activities/tests
If you have a 14 year old speaking like a 3 year old then you can’t just use the 3 year old test, you have to use the 14 year old test.
Kids can wipe out on a ST just by not understanding the instructions.
Choosing Your Test Battery
- What is the child’s history/case profile?
- What is the presenting complaint?
- List the features of language you would like to evaluate?
- Choose tests that address the questions you want answered
- Choose tools based on time allotted
- Arrange the tests in a logical sequence
Put the most important test first unless you have latitude.
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