Imagine+ Diagnostic® is a computer-adaptive benchmark assessment for grades K–12 that evaluates proficiency in Math and/or Reading. It provides educators with actionable insights to help personalize instruction, monitor growth, and identify students needing intervention.
What is the Imagine+ Diagnostic?
The Imagine+ Diagnostic uses adaptive technology to measure student abilities across key domains. It serves four primary purposes:
- Placement: Determines each student’s instructional grade level for appropriate content placement
- Growth tracking: Measures overall ability and documents growth over time
- Instructional insights: Provides educators with actionable data to inform teaching strategies
- Intervention identification: Helps educators identify students needing additional support
Key features
- Adaptive technology: Adjusts question difficulty based on student performance, providing a more accurate measure of ability.
- Multiple domains: Evaluates students across various content areas within Math and Reading. For more information, see Imagine+ Diagnostic domains and grade levels.
- Technology-enhanced items: Includes drag-and-drop, fill-in-the-blank, and multiple-choice questions.
- Three-stage structure: Divided into three parts for a more manageable assessment experience.
- Spanish Math option: Available for grades K–12 to reduce language barriers.
Administration
- Scheduling: Administrators use the Scheduler tool to define assessment windows and assign assessments to students
- Question quantity: 30–45 questions per subject (varies by grade/performance)
- Time requirements: 45–60 minutes per subject
- Flexibility: Students can pause/resume with auto-saved progress
Note
Incomplete assessments expire after 30 days if not finished. Additionally, assessments become inaccessible once their scheduled testing window closes; students will be unable to resume or submit the test at that point. To support completion, administrators can proactively extend the end date to provide additional time, reopen the closed assessment schedule, or reschedule the assessment.
Student experience
- Grades K–1: Engaging onboarding experience with audio support. Learn more: Student experience in the Grade K–1 Imagine+ Diagnostic
- Grades 2–5: Clear, grade-appropriate interface with simplified navigation and visual progress indicators. Learn more: Student experience in the Grade 2–5 Imagine+ Diagnostic
- Grades 6–12: More sophisticated and streamlined interface designed for older students. Learn more: Student experience in the Grade 6–12 Imagine+ Diagnostic
Universal features:
- Clear instructions and error feedback
- Breaks between sections, every 10-15 minutes
- A user-friendly interface designed to minimize test anxiety
Reports and data
The Imagine+ Diagnostic Report is structured in three views for varying analysis depths:
- At-A-Glance View: Quick snapshot of key metrics (e.g., risk flags, domain strengths)
- 5-Minute View: Skill-level trends and growth comparisons for short-term planning
- Detailed View: In-depth performance analysis across various metrics, including item-level and longitudinal data
Report data includes:
- Overall scaled scores that determine each student's grade-level placement
- Domain-specific scaled scores show performance in particular skill areas
- Quantile® (Math) and Lexile® (Reading) measures aligned with industry standards
- Growth percentiles that compare students to national peers
Related reporting articles
- Understanding the Imagine+ Diagnostic Report
- Analyzing the Imagine+ Diagnostic Report at the district level
- Analyzing the Diagnostic Report at the school level
- Analyzing the Diagnostic Report at the class level
- Analyzing the Diagnostic Report at the student level
- Accessing the Reports page in Imagine+ Assessment