WGU D755: Assessment for Special Education

What D755 Assessment for Special Education actually covers

D755, Assessment for Special Education, is a course in Western Governors University's School of Education, and it sits at the heart of what special educators do day to day. WGU's official program guidebook describes it as preparing special education teachers to use multiple methods of assessment and multiple data sources when making educational decisions about a student and their learning environment. It builds an understanding of how assessment data is used during screening in multitiered systems of support (MTSS), the eligibility process, the evaluation process, progress monitoring, and data-based instructional decision making. In plainer terms: you learn how to gather the right information, read it accurately, and turn it into decisions that genuinely help a child.

Direct answer: To pass D755, prepare for two things at once. Learn the assessment types and legal terms cold for the objective knowledge check, then practice applying them the way the performance task asks you to: read a student's assessment data, interpret it correctly, and connect it to eligibility and instructional decisions. Study in short, repeated sessions with self-quizzing, rehearse a full case-study walkthrough, and you will walk in ready for both.

You will usually take D755 as part of a B.A. or M.A. Special Education program, and it pairs naturally with the coursework on writing IEPs, planning instruction, and understanding disability law. It matters because assessment decisions in special education carry legal and ethical weight. A misread test result can change a child's placement, so WGU wants you fluent in how data flows from a first screening all the way to a working instructional plan.

The two ways D755 checks what you know

Plan for D755 as a course with more than one moving part. Study materials and course artifacts point to two kinds of graded work, so prepare for both and confirm the exact requirements in your official course of study, since programs and course versions do change:

• An objective knowledge check. This is the vocabulary-and-concepts side: assessment types, legal terms, and the steps of the evaluation-to-eligibility process. It rewards precise definitions and the ability to pick the right assessment for a given situation.
• A performance task built around student data. Here you work with a case study, present and interpret assessment results, and connect what the data shows to eligibility and instructional decisions. It rewards clear reasoning and application, not memorization alone.

The two reinforce each other. The terms you memorize for the knowledge check are exactly the terms you need to explain your reasoning in the task, so treat them as one connected body of skill rather than two separate hurdles.

The topics D755 expects you to know

D755 is built around how assessment data is used across the full special education process. Based on WGU's published course description and the recurring themes in study materials, plan to be solid on:

• Screening within multitiered systems of support (MTSS/RTI) — how universal screening flags students who may need more support.
• The evaluation and eligibility process — how a comprehensive evaluation establishes whether a student qualifies for special education services under IDEA.
• Types of assessment — norm-referenced versus criterion-referenced, formative versus summative, and what each one actually tells you.
• Legal and ethical foundations — IDEA, free appropriate public education (FAPE), and the requirement for nondiscriminatory assessment using multiple sources of data.
• Progress monitoring — tracking whether a student is responding to instruction over time.
• Data-based instructional decision making — using results to adjust teaching and to inform IEP goals rather than letting scores sit in a file.
• Interpreting scores and reports — reliability, validity, and reading an assessment report correctly.

Notice how these build on each other: screening leads to evaluation, evaluation to eligibility, eligibility to goals, and progress monitoring back to instruction. Understanding that flow is more valuable than memorizing any single definition in isolation, and it is what the performance task leans on.

How hard is D755, and how long should you give it?

D755 is worth 3 competency units, which makes it a smaller course, and many students describe the concept side as manageable rather than brutal — closer to a vocabulary-and-concepts course than a heavy analytical one. The challenge is breadth: there are a lot of terms and process steps that sound similar until you can tell them apart. Students who already teach or work in schools often move faster because the terminology is familiar.

Do not let the low unit count fool you into skimming. The concepts overlap enough that a quick read leaves you confident but wrong, and the performance task asks you to apply them to a real case, which is harder to fake than a multiple-choice question. Give both parts real, spaced attention and the course rewards you quickly.

A study plan that fits this material

The content of D755 is a natural fit for a few well-known learning techniques. Use them deliberately:

1. Build a living glossary with active recall. Make your own flashcards for every assessment type, legal term, and process step, then quiz yourself by producing the definition before you flip the card. Retrieving the answer, not rereading it, is what makes it stick.
2. Space your reviews. Instead of one long session, review your cards for twenty minutes across several days. Spaced repetition is especially effective for a term-heavy course like this one.
3. Practice with scenarios. After you know a definition, ask the applied version: "A teacher wants to compare a student to same-age peers nationally — which assessment type is that?" This is how both the knowledge check and the task work, so practice it that way.
4. Rehearse the case study. For the performance task, take a sample set of assessment results and walk yourself through it out loud: what the scores mean, what they suggest about eligibility, and what instructional change or IEP goal follows. Doing this before test day turns the task from a surprise into a routine.
5. Contrast confusable pairs. Sit norm-referenced next to criterion-referenced, and formative next to summative, and write one sentence on what makes each different. The material lives in the boundaries between similar concepts.
6. Use the pre-assessment as a diagnostic. Take WGU's official pre-assessment and cohort resources, then pour your remaining time into your weakest areas rather than reviewing what you already know.

If you enjoy assessment topics here, you will meet them again in related School of Education courses — the ideas connect directly to D293 Assessment and Learning Analytics and D184 Standards-Based Assessment, so the vocabulary you build now pays off later.

Mistakes that trip students up in D755

• Preparing for only one component. Studying definitions but never rehearsing a case study, or vice versa, leaves you half-ready. Practice both.
• Memorizing definitions without the "so what." Knowing that an assessment is criterion-referenced matters less than knowing when you would choose it and why.
• Blurring the assessment types. Formative and summative, norm- and criterion-referenced, screening and diagnostic — students who do not separate these clearly lose easy points.
• Underestimating the legal side. IDEA requirements, FAPE, and the mandate for multiple data sources and nondiscriminatory testing show up repeatedly. Do not treat the law as background reading.
• Studying passively. Highlighting and rereading feel productive but build weak memory. Self-quizzing is uncomfortable and far more effective.
• Ignoring the process flow. Learning terms as a flat list, rather than as steps from screening to instruction, makes application questions and the case-study task harder than they need to be.

Your D755 readiness checklist

Before you schedule the assessment, work through these honestly. If you hesitate on any, that is exactly where to spend your last study block.

• Can you explain the purpose of assessment in special education in your own words?
• Can you define and give an example of norm-referenced and criterion-referenced assessment, and say when each is appropriate?
• Can you distinguish formative from summative assessment with a concrete classroom example?
• Can you describe how screening works within an MTSS framework?
• Can you outline the steps from evaluation to determining eligibility under IDEA?
• Can you explain what FAPE means and why nondiscriminatory, multi-source assessment is required?
• Can you describe progress monitoring and how it informs instructional decisions?
• Can you take a set of assessment results and connect them to an eligibility decision, an IEP goal, or an instructional change?

D755 FAQ

Is D755 an objective assessment or a performance task?

Course materials point to D755 involving both a performance task built around interpreting student assessment data and an objective knowledge check on assessment concepts and terminology. Because programs and course versions change, confirm the exact requirements in your official course of study before you plan your prep.

How many competency units is D755 worth?

D755 is a 3 competency unit course, according to WGU's Special Education program guidebook. That makes it a smaller course, but the breadth of terminology and the applied task still deserve focused study.

How long does it take to finish D755?

It varies with your background, but many students report completing it in a few weeks of consistent study. Those already working in schools often move faster because the vocabulary is familiar.

What is the hardest part of D755?

For most students it is the volume of similar-sounding terms — telling the assessment types apart and remembering how the eligibility and progress-monitoring processes fit together — plus applying all of it to a case study. Contrasting confusable pairs directly, then rehearsing a full data walkthrough, is the fastest fix.

What should I focus on first when studying?

Start with the core assessment types and the IDEA-related legal terms, since they anchor everything else. Once those are solid, move to the process flow — screening, evaluation, eligibility, progress monitoring — and then to applying it all to short scenarios and a sample case.

Where can I find reliable information about the course?

Use WGU's official course of study, its pre-assessment, and program cohorts first. You can also review WGU's Special Education program page for context. For more study guides, see our School of Education hub or the full index of WGU course guides, including closely related courses like NNA1 Planning, Implementing, and Managing Instruction.