Skill assessments show which skills a learner already has. Your supervisor chooses the assessment, interprets the results, and writes the goals. Your job as an RBT is to help collect accurate information when asked.
Why it matters
A skill assessment is the starting point for a learner's program. It shows strengths, gaps, and the next skills that make sense to teach. Repeating it later shows progress. If the assessment data is wrong, the goals built on it can be wrong too: a learner might spend months on skills they already have, or be pushed toward skills they are not ready for.
In practice questions, this task usually comes as a scenario. An RBT is helping with an assessment and something comes up: the learner gets an item wrong, a parent asks what the scores mean, or the learner is sick that day. You choose the response that keeps the assessment accurate and stays within the RBT role.
Key ideas
- The supervisor leads, the RBT assists. A BCBA or BCaBA picks the tool, decides which parts you run, trains you on them, and interprets the results. You carry out only the parts you have been assigned and trained to do.
- Follow the protocol exactly. Use the materials, wording, number of trials, and scoring rules the protocol describes. Small changes, such as rewording an instruction or adding a gesture, can change the learner's score.
- Measure what the learner can do independently. During test trials, most protocols tell you not to prompt or give feedback on correct versus incorrect answers. If you help, the result reflects your help, not the learner's skill.
- Record exactly what happened. Score each response as it happens, using the protocol's rules. Write down anything unusual, such as illness, a new setting, or a long wait before the session, and tell your supervisor.
- Leave interpretation to your supervisor. Do not explain scores, predict outcomes, or suggest goals to caregivers or teachers. Pass their questions to your supervisor.
- Keep it confidential. Store and share assessment forms and results only as your workplace's procedures allow.
Definitions
- Skill assessment: a structured way to find out which skills a learner can and cannot do yet, used to choose treatment goals and track progress over time.
- Curriculum-based assessment: an assessment tied to a specific curriculum. It checks the learner's skills against the curriculum's own skill list and mastery criteria, so the results point directly to teaching targets. This makes it criterion-referenced: the learner is compared to a standard, not to other people. The VB-MAPP and the ABLLS-R are common examples in ABA. The categories can overlap: the VB-MAPP, for instance, also groups its milestones by typical developmental levels.
- Developmental assessment: an assessment that compares the learner's skills to milestones in typical development, such as the order and approximate ages at which children usually learn to point, imitate, or speak in short phrases.
- Norm-referenced assessment: a standardized test that compares a learner's score to the scores of a large sample of same-age peers. Many developmental and adaptive behavior tests work this way, and some may only be given by specially qualified professionals.
- Social skills assessment: an assessment of how the learner interacts with other people, such as greeting, sharing, turn-taking, joining play, and holding a conversation. It often combines direct observation in natural settings with checklists or rating scales completed by caregivers or teachers.
Examples from a session
Three assessments, one RBT
- Curriculum-based (clinic): Your supervisor asks you to probe the listener-responding items for Leo, age 4. You set out the exact picture cards listed, give each instruction once in the protocol's wording, wait the set time, and score each response with no prompts. Leo touches the dog picture when you say, "Touch cat." You score it as incorrect, move on, and keep your tone neutral.
- Developmental (home): For Amara, age 2, your supervisor runs the assessment and asks you to record. You note that Amara stacks four blocks and points to request her cup. You also write down that her mother mentioned Amara woke up early with a cold, and you tell your supervisor before the session ends.
- Social (school): Jordan, age 12, is being assessed on peer interaction. Your supervisor asks you to observe lunch and recess and record each time Jordan starts a conversation with a peer and how many back-and-forth turns follow, using the operational definitions in the protocol.
Non-example (home): During free play, Andre sees Lily, 3, stack four blocks and checks off that item on her developmental checklist. That is not assessment data: the item was not given under the protocol's conditions. He notes it and tells his supervisor.
Common mistakes / exam traps
- Scoring from memory or guessing. Do not mark an item as mastered because "they did it last week." Score only what you observe under the protocol's conditions.
- Changing the plan on your own. If an item seems too hard, the materials are missing, or the learner is unwell, do not skip or modify items. Check with your supervisor.
Exam trap
Allowed support vs. prompting. Praise for effort or good sitting, and breaks the protocol schedules, keep the learner working and do not change the score. Hints, gestures, repeated instructions, or "That's right!" after an answer do change it. The test: if what you do helps the learner find the answer or tells them whether they were right, it is a prompt or feedback, not allowed support.
Exam trap
Curriculum-based vs. developmental vs. norm-referenced. Ask what the learner is compared to. A curriculum's skill list and mastery criteria: curriculum-based (criterion-referenced). Milestones children typically reach by certain ages: developmental. Scores of a large group of same-age peers: norm-referenced.
Exam trap
Reporting vs. interpreting. Telling your supervisor what you saw, including a parent's question such as "So is she behind?", is your job. Explaining what scores mean, choosing goals, or adjusting the assessment is the supervisor's. Answer choices that have the RBT do these are almost always wrong.
Quick check
During a curriculum-based assessment, a learner does not respond to an instruction. The protocol says to wait 5 seconds and then score the item. What should the RBT do?
Related topics
- Preference assessments: paired-stimulus, multiple-stimulus, and free-operant (B.1)
- Functional assessment: descriptive assessment and functional analysis (B.3)
- Writing observable, measurable descriptions of behavior (A.5)
- Reporting factors that may affect progress (E.3)
- Protecting confidential information (F.5)