For special education teachers and interventionists
Measure it. Graph it. Then decide.
Goal Data Notebook explains how to set baselines, collect and graph IEP goal data, and use decision rules, with the federal requirement behind each step and three small calculators that run in your browser.
Seven pages of the notebook
Each page is a group of guides. Start with baselines, or jump to the one that matches your week.
Start here
Baselines
Setting a starting point you can measure from, and how a baseline differs from present levels.
3 guides. Open this pageCollect
Data collection
Choosing a measure, and collecting accuracy, frequency, duration, interval, and ABC data in a real classroom.
8 guides. Open this pageChart
Graphing
Aimlines, trendlines, spreadsheets, and reading a progress graph.
3 guides. Open this pageDecide
Decision rules
How many data points to wait for, when to change an intervention, and what to do when a goal is mastered or stalled.
5 guides. Open this pageMeasures
Reading and math measures
Curriculum-based measurement, oral reading fluency, math facts, and writing probes.
4 guides. Open this pageReport
Reporting to parents
Progress reports and comments that say something, and schedules for reporting.
3 guides. Open this pageTools
Tools and organization
Calculators for percent, rate of improvement, and trend, plus data privacy, binders, and routines for teams.
4 guides. Open this page
Start with the problem on your desk
Pick the line that sounds like your week.
Recently updated
Each guide is re-read against its sources on a schedule. The date on a guide is the last time we did.
A Sample IEP Data Binder Layout That Stays Current
A tab-by-tab IEP data binder or folder layout with a one-page goal card, a data log, a graph, and report copies, plus an upkeep routine and privacy notes.
Tools and organizationA Weekly Data Routine for a Special Education Caseload
A model week for collecting, graphing, and reviewing IEP data for a caseload, with a time budget, a review cycle, and what to do when a week falls apart.
Data collectionABC Data Sheets Explained for Teachers
How to record antecedent, behavior, and consequence: what to note, when an ABC form beats a tally, how long to observe, and what it cannot prove.
GraphingAimline and Trendline Explained for IEP Progress Graphs
What an aimline (goal line) and a trendline are, how to draw both, and how NCII's decision rules compare them, with a calculator for the slopes.
BaselinesBaseline vs Present Levels: What Goes Where in an IEP
A baseline is one measured number. Present levels (PLAAFP) wrap it in strengths, impact, and comparison. See what goes where, with Utah and NCII examples.
Data collectionBehavior Frequency and Duration Data for IEP Goals
How to count, time, and compare behavior data for an IEP goal: frequency, duration, latency, and intensity, with a baseline plan and worked examples.
How we work
Methods you can check
The federal rule says the IEP must describe how progress will be measured and reported. It does not say how many data points, which graph, or when to change a plan. We separate what a rule requires from what research and practice suggest, name the source of each, and say plainly when the answer is your team's call.
- Worked examples use invented students and invented numbers, labeled as such.
- The calculators run in your browser. Nothing you type is sent or saved.
- No student names, ever. Do not send us records.
- Nothing here is legal, psychological, or educational advice.
Terms you will see
A few of the words that come up most. The full glossary has the rest.
- Aimline
- A straight line from the baseline to the goal, showing the growth needed to reach the goal on time.
- Baseline
- The student's performance on a skill before instruction on a goal begins.
- Progress monitoring
- Regularly measuring a student's performance on a goal to see whether instruction is working.
- Trendline
- A line fitted through the data points that summarizes their direction.