### Reliability Coefficient – Chemistry Hw

The key terms of Chemistry Homework include, Reliability Coefficient.

acceptable reliability coefficient

.92

lowest acceptable reliability coefficient for universal screening

.80

Jamies Scores and an example with validity

true

If school district is 100% caucasian, selecting texts whose sample was based on caucasian majority would be acceptable

true

What scale of measurement for ranking students highest to lowest reading fluency

ordinal

If student earns an AE of 10-4, we can say that their math performance level is like a student who is 10 years and 4 month old.

False, they answered as many correct as a 10-4 month old (not perform like)

Median

85

A students score on an assessment today is their true score

False

Informal Assessments and typically not standardized

True

True score of 95th percentile confidence interval for a student who score a 45 with a SEM of 2

41-49

If given a choice, speducators should report grade equivalent over age equivalent

True (not sure)

The smaller the SEM, the more accurate the scores

True

Raw scores are used to make comparisons between students

False (not sure)

Calculate Mean:
70, 75, 85, 85, 95, 100

85

What scale would i use to assign scores to a composition exercise

Ratio

A normative sample must be based on national data

true

Which graph shows more variance?

Set A

Mode

85

acceptable reliability coefficient

.92

lowest acceptable reliability coefficient for universal screening

.80

Jamies Scores and an example with validity

true

If school district is 100% caucasian, selecting texts whose sample was based on caucasian majority would be acceptable

true

What scale of measurement for ranking students highest to lowest reading fluency

ordinal

If student earns an AE of 10-4, we can say that their math performance level is like a student who is 10 years and 4 month old.

False, they answered as many correct as a 10-4 month old (not perform like)

Median

85

A students score on an assessment today is their true score

False

Informal Assessments and typically not standardized

True

True score of 95th percentile confidence interval for a student who score a 45 with a SEM of 2

41-49

If given a choice, speducators should report grade equivalent over age equivalent

True (not sure)

The smaller the SEM, the more accurate the scores

True

Raw scores are used to make comparisons between students

False (not sure)

Calculate Mean:
70, 75, 85, 85, 95, 100

85

What scale would i use to assign scores to a composition exercise

Ratio

A normative sample must be based on national data

true

Which graph shows more variance?

Set A

Mode

85

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