Capella University

PSY8307: Advanced Single-Subject Research Design for Behavior Analysis

A guide to Capella's PSY8307, the PhD in Behavior Analysis course on designing and evaluating advanced single-subject research and proposals for the dissertation.

Updated October 2026 · 5 min read

PSY8307 develops advanced skills in the design and analysis of single-subject research.

Capella says students evaluate existing research on design logic, internal, external and social validity, and evidence-based practice, then develop well-controlled analyses and advanced research proposals in preparation for their dissertations.

The prerequisites listed are PSY7305, PSY7306, PSY8304 and RSCH-V8925, and the course is for PhD in Behavior Analysis students only. The step up from earlier courses is that you must now design, not just describe.

Course at a Glance

ItemDetails
UniversityCapella University
Code and titlePSY8307 Advanced Single-Subject Research Design for Behavior Analysis
LevelDoctoral (PhD in Behavior Analysis students only)
Credits5
PrerequisitesPSY7305, PSY7306, PSY8304, RSCH-V8925
Typical workEvaluations of published studies, design analyses, research proposals

What PSY8307 Covers

Catalog topicWhat it means for your work
Advanced design and analysisChoosing and justifying designs for specific questions
Evaluating existing researchJudging a study's logic and validity
Internal, external and social validityAsking whether the effect is real, general and meaningful
Evidence-based practiceJudging whether a literature supports a practice
Each design in depth and in combinationBuilding designs that fit complex questions
Advanced proposals for the dissertationWriting a clear, well-controlled plan

Key Ideas to Get Straight

Three Kinds of Validity

Internal validity asks whether the intervention caused the change. External validity asks how far the finding generalizes. Social validity asks whether the goals, procedures and outcomes matter to the people involved. A strong evaluation addresses all three.

Invented illustration: A fictional study shows a clean effect in three participants. You judge internal validity strong, note that all participants came from one setting (external validity limited), and observe that the authors did not ask caregivers whether the target behavior mattered to them (social validity not shown).

Combining Designs

The catalog mentions designs in combination. Explain why a combined design answers a question that a single design cannot, and what each part contributes.

From Critique to Proposal

A proposal answers the weaknesses you identified in existing work. Make that link visible in your rationale.

Typical Assignments and How to Approach Them

The catalog does not list individual assessments. The table shows typical tasks; confirm in your course room.

Assignment typeWhat it testsHow to approach it
Study evaluationApplying validity criteriaRate each criterion with evidence from the paper
Design analysisMatching design to questionState the question, the design, the controls and the limits
Evidence-based practice reviewJudging a literatureCompare studies by rigor and consistency of effect
Research proposalDissertation readinessWrite question, design, measures, analysis plan and validity safeguards

Proposal Skeleton

A skeleton helps you check that each component of a proposal is present and linked.

SectionQuestions it must answer
Problem and questionWhat gap in the literature does this fill?
DesignWhy this design, and what does it control for?
Participants and settingWho, where, and what are the ethical safeguards?
MeasuresWhat is measured and how is reliability checked?
Analysis planHow will data be examined and what would count as an effect?
ValidityHow are internal, external and social validity addressed?

Review the skeleton against the rubric before drafting. A missing row is easier to fix now than after writing.

Writing and Referencing

A Second Worked Example: Critiquing a Study Step by Step

A critique works best as a sequence of short, evidence-based judgments. Use the same order each time.

Invented illustration: For a fictional multiple-baseline study you write: (1) design logic: staggered starts show the effect only after each introduction; (2) internal validity: stable baselines and an immediate change support the claim, though one participant's baseline was variable; (3) external validity: three participants from one site; (4) social validity: no report that families judged the outcome meaningful; (5) conclusion: a promising but not yet well-generalized practice.

Each number is a separate paragraph with a citation to a specific figure or method detail. This format keeps the critique concrete and prevents vague comments such as "the study was strong".

When you move to your own proposal, build in the fixes you identified: more sites, a social validity measure, or a clearer baseline criterion.

Where Students Get Stuck

Study Tips for PSY8307

How We Help with PSY8307

Send the prompt, rubric, readings and any draft. A writer with a behavior analysis background can review design logic, prepare a model critique or proposal outline, and explain the reasoning. See our psychology assignment help guide.

GradeEssays is independent of Capella University and offers study support only. Your proposal and dissertation work must be your own, under Capella's integrity policy. Orders are written from scratch, with free revisions within the scope of your original request and a full refund if late.

Strengthen Your PSY8307 Research Proposal

Share the brief and rubric. A writer prepares a model that explains design choices and validity arguments clearly.

Start My PSY8307 Help

Free revisions · Full refund if late · Written from scratch for your order

Frequently Asked Questions

What are the prerequisites for PSY8307?

Capella lists PSY7305, PSY7306, PSY8304 and RSCH-V8925.

Who can take it?

PhD in Behavior Analysis students only, per the catalog.

What are the three validity types?

Internal, external and social validity, all named in the catalog description.

Does it prepare for the dissertation?

Yes. The description says students develop advanced research proposals in preparation for their dissertations.

How many credits?

Five.

Can GradeEssays write my proposal?

No. We provide tutoring, feedback and model examples; your proposal must be your own work.