Assessment in Learning Module 3

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Questions and Answers

If the Spearman-Brown formula yields a high reliability score, what does that indicate about the test?

The items in the test correlate poorly

The test is likely to produce similar results if retaken (correct)

The test scores vary significantly between administrations

The test results are inconsistent

What is the primary purpose of using the split-half method in this scenario?

To check the consistency of test scores (correct)

To evaluate different testing formats

To administer the test to more students

To determine the average score of the class

What would be a likely outcome if the odd and even item scores show a low correlation?

The test may require items to be revised or replaced (correct)

The number of students should be increased

The test may be considered reliable

The mean score of the class will improve

What is the first step to calculate the reliability using the Spearman-Brown formula?

Find the total score sums for odd and even items Signup and view all the answers

Which of the following best describes the term 'test reliability' in this context?

The consistency of test scores over multiple administrations Signup and view all the answers

What is the acceptable minimum value for the reliability coefficient?

0.60 Signup and view all the answers

What effect does test length have on reliability?

Increases reliability Signup and view all the answers

How does group variability affect the reliability coefficient?

Higher variability leads to higher reliability. Signup and view all the answers

Which reliability coefficient range indicates 'excellent reliability'?

Above 0.90 Signup and view all the answers

What can affect the test score reliability according to item difficulty?

Items that are very easy or very hard can decrease reliability. Signup and view all the answers

What is the interpretation of a reliability coefficient between 0.61 and 0.70?

Needs revision unless it is quite short. Signup and view all the answers

Which reliability coefficient range indicates that few items need improvement?

0.71 – 0.80 Signup and view all the answers

What is the outcome of unreliable scoring on test score reliability?

It limits the reliability of test scores. Signup and view all the answers

What method was used to assess the reliability of the test?

Test-retest method Signup and view all the answers

What is the reliability coefficient calculated using the Pearson r formula?

0.91 Signup and view all the answers

What is the value of Σx for the test scores?

274 Signup and view all the answers

What is the value of Σy as calculated from the second test scores?

316 Signup and view all the answers

Which student had the highest score in the first test (FT)?

Student 3 Signup and view all the answers

What is the total number of students who participated in the test?

10 Signup and view all the answers

What does a reliability coefficient of 0.91 indicate about the test?

Very high reliability Signup and view all the answers

Which calculation is not represented directly in the test score analysis?

Variability Signup and view all the answers

What are the two general classifications of test items used in paper and pencil achievement tests?

Objective type and subjective type items Signup and view all the answers

Which part is NOT a component of a multiple-choice test?

Multiple correct answers Signup and view all the answers

In a matching type test, where should the descriptions be placed?

On the left side with options Signup and view all the answers

Which type of test requires examinees to choose between True or False?

True or false test Signup and view all the answers

What distinguishes a completion or short answer test from other types?

It requires students to supply the answer Signup and view all the answers

What is the main purpose of an essay type test?

To allow students to present original ideas Signup and view all the answers

Which type of test allows for very limited answer options, requiring recognition of correct or incorrect statements?

True or false test Signup and view all the answers

What is NOT a way to construct a completion type of test?

Diagram form Signup and view all the answers

What is the sum of the squared scores ($"+X^2"$) for all students?

11,917 Signup and view all the answers

How many students scored above 30?

7 Signup and view all the answers

What is the calculation for variance based on the given data?

$rac{ ext{Σ}(X^2) - rac{( ext{Σ}X)^2}{n}}{n}$ Signup and view all the answers

What score did the student with the lowest performance achieve?

16 Signup and view all the answers

Which of these scores is equivalent to the third highest score?

35 Signup and view all the answers

What is the standard deviation, assuming the mean has already been calculated?

7.85 Signup and view all the answers

Which student achieved the second highest score?

14 Signup and view all the answers

Study Notes

Reliability Coefficient Overview

Reliability coefficient measures error associated with test scores.
Ranges from 0 to 1.0; acceptable values are 0.60 or higher.
Higher values indicate greater reliability and consistency of test items.

Interpretation of Reliability Coefficient

Group variability impacts reliability; heterogeneous groups yield higher coefficients.
Scoring reliability affects overall reliability; unreliable scoring introduces errors.
Test length contributes to reliability; longer tests tend to be more reliable.
Item difficulty influences reliability; tests with overly easy or difficult items decrease reliability.

Level of Reliability Coefficient

Above 0.90: Excellent reliability.
0.81 – 0.90: Very good for classroom tests.
0.71 – 0.80: Good reliability; may require item improvements.
0.61 – 0.70: Low reliability; additional measures recommended.
0.51 – 0.60: Suggests revision needed, especially for shorter tests.
0.50 and below: Questionable reliability; should not heavily influence course grades.

Examples of Testing Reliability

Example 1: Test-retest method with two identical tests for students showed a Pearson r of 0.91, indicating very high reliability.
Example 2: Split-half method analyzed scores from odd and even items; reliability assessed using Spearman-Brown formula.

Types of Test Items

Selection-type items (Objective type): Includes multiple-choice tests, true/false, matching tests.
- Multiple-choice test: Comprises a stem, keyed option, and distractors, measuring knowledge and application.
- Matching test: Consists of two columns with items to match, assessing comprehension.
- True/false test: Requires selecting true or false for statements; a force-choice format.
Supply-type items (Subjective type): Involve responses created by the examinee.
- Completion/Short Answer Test: Requires examinees to provide answers instead of choosing from options.
- Essay type test: Assesses organization of original ideas, requiring integration of factual knowledge into coherent responses.

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Description

Explore the concept of reliability coefficient in this quiz from Module 3 of Assessment in Learning 1. Understand how reliability measures the amount of error associated with test scores and its significance in educational assessments.