Learning preferences

Make learning more comfortable. Changes apply immediately.

Enlarges page content, including diagrams and their labels. You can also use your browser’s zoom.

Choose the colours that are easiest for you to distinguish. Applies to lesson diagrams and lab plots. Labels, shapes, hatching and line patterns also distinguish meanings. Source photographs and raw image brightness stay unchanged; mask-only views are available for image overlays.

ExampleComparisonSample link

Saved in this browser on this device. Preferences are separate from progress backups.

college · HANDS-ON COURSE

Psychology and human behavior — Introductory college

Develop a defensible question, method and independent evidence portfolio with a reproducible revision trail. Analyze supplied learning and social scenarios, compare explanations and document evidence-based revisions. Practice cognitive, cultural and research-literacy reasoning without conducting participant experiments.

A developing pathway in cognition, learning, social interpretation and evidence literacy. Biological and clinical research, diagnosis/treatment activities and sensitive participant tasks are outside the current authoring scope. Selected educational examples do not establish full biological or clinical coverage. This is not a complete semester survey, AP-authorized course, complete AP preparation or evidence of clinical competence. Independent assessment and human review remain unfinished. Develop an independent evidence portfolio with a reproducible revision trail.

Preparation and direct entry
  • Interpret supplied records and cite their provenance.
  • Explain a comparison, basic rates and why association need not establish causation.
  • No programming required; document analysis decisions so another reader can reproduce them.

Open any lesson. Recaps explain assumed concepts without locking access.

0/49 lessons completed · 0 marked skipped. Skips do not reduce this course's completion denominator or award understanding. Shared lesson work is reused across paths; project evidence belongs to this course.

Lesson sequence

Each linked investigation opens on its own page. Your selected course stays with you as you move between lessons.

  1. Investigation 1 of 49

    A difference is not yet a treatment effect

    About this lesson

    Psychology studies behavior and mental processes through systematic evidence.

    Open investigation

  2. Investigation 2 of 49· Biological mechanisms 1

    Trace a signal across two neurons

    About this lesson

    Separate electrical signaling within a neuron from chemical signaling across a synapse.

    Open investigation

  3. Investigation 3 of 49· Biological systems

    Separate sensory, motor and autonomic pathways

    About this lesson

    Trace a response through central and peripheral pathways and distinguish neural from endocrine signaling.

    Open investigation

  4. Investigation 4 of 49· Brain systems and research

    Brain evidence: activation, timing and causal claims

    About this lesson

    Match a brain-research method to its inference and avoid treating one active area as a complete explanation.

    Open investigation

  5. Investigation 5 of 49· Perception mechanisms 2

    Separate detecting a signal from deciding it is there

    About this lesson

    Use hits and false alarms to distinguish response policy from improved sensory discrimination.

    Open investigation

  6. Investigation 6 of 49· Sensation and perception

    From stimulus energy to a perceptual judgment

    About this lesson

    Distinguish physical stimulus properties, sensory transduction and interpretation using controlled cue comparisons.

    Open investigation

  7. Investigation 7 of 49· Biological mechanisms 5

    Separate time of day from time awake

    About this lesson

    Design a comparison that separates a daily rhythm from accumulated wakefulness.

    Open investigation

  8. Investigation 8 of 49

    Connect biological mechanisms with evidence

    About this lesson

    Neurons communicate through electrical activity and chemical signaling; nervous and endocrine systems coordinate behavior on different timescales.

    Open investigation

  9. Investigation 9 of 49· Attention and perception

    Attention and encoding: visible does not mean noticed

    About this lesson

    Distinguish stimulus availability, attention, conscious report and later memory when evaluating an omission.

    Open investigation

  10. Investigation 10 of 49· Memory systems

    Memory systems: facts, episodes and skills

    About this lesson

    Distinguish episodic, semantic and procedural performance and interpret a selective impairment without locating all memory in one structure.

    Open investigation

  11. Investigation 11 of 49· Working memory

    Working memory: maintenance, manipulation and competing tasks

    About this lesson

    Compare dual-task costs to test resource-sharing hypotheses without treating working memory as a fixed universal number.

    Open investigation

  12. Investigation 12 of 49· Cognition mechanisms 4

    Distinguish a storage claim from a retrieval result

    About this lesson

    Compare free recall, cues and recognition without treating memory as a perfect recording.

    Open investigation

  13. Investigation 13 of 49· Storage and sleep

    Consolidation: sleep timing and memory after learning

    About this lesson

    Distinguish post-learning stabilization from initial encoding and retrieval alertness using a timed design.

    Open investigation

  14. Investigation 14 of 49· Forgetting and interference

    Interference: which learning disrupts which memory?

    About this lesson

    Distinguish proactive from retroactive interference and test similarity separately from elapsed time.

    Open investigation

  15. Investigation 15 of 49· Retrieval and learning

    Retrieval practice: immediate fluency and later retention

    About this lesson

    Compare study conditions across delays and distinguish immediate performance from durable retrieval.

    Open investigation

  16. Investigation 16 of 49· Memory errors

    Reconstructive memory: wording, source and confidence

    About this lesson

    Distinguish event information from later suggestions and evaluate false reports without assuming all memories are inaccurate.

    Open investigation

  17. Investigation 17 of 49· Judgment and problem solving

    Thinking: search strategies, framing and base rates

    About this lesson

    Compare efficient heuristics with systematic search and check a judgment against the relevant reference group.

    Open investigation

  18. Investigation 18 of 49· Cognition and measurement 7

    Audit a score before interpreting a trait

    About this lesson

    Separate consistent measurement, valid interpretation and comparison with a reference group.

    Open investigation

  19. Investigation 19 of 49

    Remembering involves encoding and retrieval

    About this lesson

    Memory depends on attention, encoding, storage and retrieval.

    Open investigation

  20. Investigation 20 of 49· Learning mechanisms

    Classical conditioning: what does the cue predict?

    About this lesson

    Identify stimulus–stimulus learning and distinguish acquisition, extinction, generalization and discrimination.

    Open investigation

  21. Investigation 21 of 49· Learning mechanisms 3

    Predict behavior from consequences and schedules

    About this lesson

    Classify added and removed consequences by their observed effect, then trace a reinforcement schedule.

    Open investigation

  22. Investigation 22 of 49· Social learning

    Observational learning: knowing versus performing

    About this lesson

    Distinguish acquisition of an observed action from its immediate performance and test alternative explanations.

    Open investigation

  23. Investigation 23 of 49· Development mechanisms 6

    Test a developmental explanation against a changed task

    About this lesson

    Distinguish a proposed developmental change from language, familiarity and task demands.

    Open investigation

  24. Investigation 24 of 49· Developmental research

    Lifespan designs: age, cohort and repeated measurement

    About this lesson

    Distinguish age differences from within-person change using cross-sectional, longitudinal and sequential designs.

    Open investigation

  25. Investigation 25 of 49· Development across the lifespan

    Physical development: timing, variation and measurement

    About this lesson

    Distinguish developmental timing, rate and domain-specific change without treating group averages as individual deadlines.

    Open investigation

  26. Investigation 26 of 49· Relationships across the lifespan

    Social-emotional development: relationships, roles and context

    About this lesson

    Explain how relationship patterns and changing social roles interact without treating a childhood observation as destiny.

    Open investigation

  27. Investigation 27 of 49· Human development and diversity

    Gender and sexual orientation: constructs, development and respectful evidence

    About this lesson

    Distinguish gender identity, expression, social roles and sexual orientation, and identify what a measure does and does not establish.

    Open investigation

  28. Investigation 28 of 49· Language and cognition

    Language development: rules, examples and communication

    About this lesson

    Distinguish memorized examples from productive language rules while considering interaction and task context.

    Open investigation

  29. Investigation 29 of 49

    Learning changes with experience and context

    About this lesson

    Classical conditioning concerns learned associations between events; operant conditioning concerns how consequences alter behavior.

    Open investigation

  30. Investigation 30 of 49· Social explanation

    Attribution: behavior under choice and constraint

    About this lesson

    Distinguish an observed action from a dispositional inference by examining choice, incentives and situational constraints.

    Open investigation

  31. Investigation 31 of 49· Attitudes and persuasion

    Persuasion: argument quality, expertise and involvement

    About this lesson

    Test whether persuasion depends differently on argument quality and source cues across involvement conditions.

    Open investigation

  32. Investigation 32 of 49· Groups and norms

    Group influence: public agreement and private judgment

    About this lesson

    Distinguish normative and informational influence using public responses, private judgments and uncertainty.

    Open investigation

  33. Investigation 33 of 49· Prosocial behavior

    Helping: noticing, interpreting and taking responsibility

    About this lesson

    Locate where a helping process may break down and distinguish situational opportunity from a global moral judgment.

    Open investigation

  34. Investigation 34 of 49· Social and personality mechanisms 8

    Compare trait patterns with situation effects

    About this lesson

    Use repeated observations to distinguish stable differences from context-dependent behavior.

    Open investigation

  35. Investigation 35 of 49· Personality perspectives

    Personality explanations: compare predictions, not labels

    About this lesson

    Distinguish psychodynamic, humanistic, trait and social-cognitive explanations and identify testable predictions.

    Open investigation

  36. Investigation 36 of 49· Motivation

    Motivation: incentives, interest and changing goals

    About this lesson

    Distinguish immediate task output from interest and evaluate whether an incentive changes each.

    Open investigation

  37. Investigation 37 of 49· Emotion mechanisms

    Emotion: arousal, appraisal and expression

    About this lesson

    Compare emotion accounts using component-specific evidence without inferring emotion from one physiological signal.

    Open investigation

  38. Investigation 38 of 49

    Explain behavior without reducing people to labels

    About this lesson

    Social psychology examines how situations and other people influence behavior; personality describes patterns across contexts.

    Open investigation

  39. Investigation 39 of 49· Health psychology

    Stress: demands, appraisal, resources and time

    About this lesson

    Distinguish stressors from responses and evaluate acute versus sustained patterns without diagnosing individuals.

    Open investigation

  40. Investigation 40 of 49· Positive psychology

    Positive psychology: wellbeing, persistence and evidence

    About this lesson

    Distinguish wellbeing constructs and evaluate whether an intervention finding supports a durable, generalizable claim.

    Open investigation

  41. Investigation 41 of 49· Mental-health literacy

    Mental-health classification: purpose, context and limits

    About this lesson

    Distinguish a symptom report, screening result, professional assessment and explanatory model.

    Open investigation

  42. Investigation 42 of 49· Treatment evidence

    Treatment literacy: compare evidence and outcomes

    About this lesson

    Evaluate an educational treatment claim using comparison groups, outcomes, follow-up and uncertainty.

    Open investigation

  43. Investigation 43 of 49

    Mental health claims require careful interpretation

    About this lesson

    Mental and physical wellbeing involve interacting biological, psychological and social factors.

    Open investigation

  44. Investigation 44 of 49

    Turn a broad question into a measurable one

    About this lesson

    Operationalization states how a concept will be observed.

    Open investigation

  45. Investigation 45 of 49

    Who is absent from the dataset?

    About this lesson

    A sampling frame lists units eligible for selection.

    Open investigation

  46. Investigation 46 of 49

    Separate a comparison from a causal claim

    About this lesson

    A causal question asks what would change under a different action, holding relevant conditions comparable.

    Open investigation

  47. Investigation 47 of 49

    A codebook makes interpretation inspectable

    About this lesson

    Qualitative analysis identifies patterns in text while retaining context.

    Open investigation

  48. Investigation 48 of 49

    Make an analysis reproducible without exposing people

    About this lesson

    Reproducibility means another reader can follow the data, definitions and decisions to obtain the reported analysis.

    Open investigation

  49. Investigation 49 of 49

    When an overall result reverses within groups

    About this lesson

    Compare overall and within-difficulty success rates before crediting an intervention.

    Open investigation

Cumulative projectSaved workspace · human review remains separate
CUMULATIVE PROJECT

A psychological evidence portfolio — Introductory college

Evaluate a fictional learning intervention using study design, biological and cognitive mechanisms, development, social context and wellbeing limitations. Add a justified independent question, at least one real institutional or scholarly source, a methods appendix and a response to a competing explanation.

Evidence and review criteria

  • Context and definitions: accurately identify the relevant institutions, mechanisms and population.
  • Evidence: connect specific records to claims without presenting fiction as observed history.
  • Analysis: show calculations or interpretation steps and consider a credible alternative.
  • Limits: separate facts, assumptions, causal claims and value judgments.
  • Transfer: adapt to the new case rather than repeating the worked response.
  • Communication and revision: provide an inspectable artifact and revision trail. Record guidance separately from quality; a submitted artifact is not automatically demonstrated understanding.

Use your lesson captures and citations. This saved workspace supports a reviewer; it does not automatically grade your writing or certify proficiency.

Review examples and quality criteria

These are authored teaching examples for practicing review, not calibrated scoring standards. Apply your course’s specific rubric above. Different conclusions can be defensible when evidence supports them; factual and numerical errors still require correction.

Claim needing revision

Cued recall doubled, proving that cues doubled memory capacity.

More defensible reasoning

In the fictional record, recall rises from 6/20 to 12/20: a 30-percentage-point gain. Cue access could help retrieval, but order and prior testing also differ. Counterbalance comparable lists before isolating a cue effect; the result does not measure a fixed storage capacity.

Why the revision helps

The revised response combines correct arithmetic with a mechanism and a rival explanation. It does not treat a task score as a direct observation of all memory processes.

Assess the artifact, with assistance recorded separately
CriterionDeveloping evidenceSupported evidenceWell-substantiated evidence
Question and contextA broad topic or undefined population.A focused question, time/place and relevant definitions.A justified scope with context that changes the interpretation.
Sources and claimsNames a source but does not connect its contents to a claim.Cites specific records and explains provenance and relevance.Weighs limitations, corroboration and meaningful disagreement.
Mechanism and analysisGives a conclusion with missing steps or unclear units.Shows a valid causal chain, calculation or interpretation.Tests a credible alternative and explains sensitivity or uncertainty.
Transfer and revisionRepeats the worked answer despite changed facts.Adapts the reasoning to the unfamiliar case.Explains why the change matters and what evidence would reverse the conclusion.

Use “missing” when no relevant evidence is supplied. Do not average these descriptions into an automatic pass score. Record whether the learner followed an example, used guidance or worked independently, and review quality separately.

  1. Locate one specific claim and its supporting source or calculation.
  2. Check the context, units and intermediate reasoning.
  3. Identify one plausible alternative and the evidence that distinguishes it.
  4. Ask for a revision or an unfamiliar application; explain the reason for the request.

The saved project remains a draft or a local submission. This page does not record instructor certification or infer understanding from response length.

Loading project draft…

Export this project with your evidence
Separate application casesVersioned evidence · earlier work remains intact

Apply your reasoning to a separate case

These versioned cases add distinct evidence to the portfolio. Earlier drafts and local submissions remain intact. Write your explanation before revealing review notes when you want to retain a pre-feedback attempt.

NEW APPLICATION · VERSION 1

Does a practice benefit transfer to a new task?

Use this packet for a fresh written application. All records below are original fictional teaching materials. They test reasoning under stated conditions and do not establish actual historical or population facts. Your original course-project draft remains separate.

Record design

Citation ID: social:independent:psychology:v1-design

Fictional study: 40 volunteers are randomly assigned 20/20 to strategy instruction or equal-time ordinary practice. All complete both outcome tasks; no exclusions occur. The scoring rule was specified beforehand.

Record outcomes

Citation ID: social:independent:psychology:v1-outcomes

On a practiced 20-point task the instruction group averages 14 and the comparison group 10. On an unfamiliar 20-point task both average 9. Group variability and individual observations are not supplied.

Record claim

Citation ID: social:independent:psychology:v1-claim

A fictional advertisement says the instruction increases general intelligence by 40%. The unfamiliar task differs in instructions and vocabulary as well as surface content.

This case is shared across paths that use it. Revisiting it in another course retains drafts and known review-note exposure; it is not a new unseen assessment.

Loading application evidence…

NEW APPLICATION · VERSION 1

Audit a practice protocol before claiming learning

Use this packet for a fresh written application. All records below are original fictional teaching materials. They test reasoning under stated conditions and do not establish actual historical or population facts. Your original course-project draft remains separate.

Record schedule

Citation ID: social:independent:learning-protocol:v1-schedule

A fictional practice console records responses at seconds 1, 3, 7, 8, 15, 16 and 22. Rule T delivers a token at the first response at least 7 seconds after the last delivery; its clock initially starts at zero and restarts on delivery. Rule C delivers a token on every third response, resetting its count after delivery. Apply each rule separately to the same fixed responses. No response occurs at second 14.

Record criterion

Citation ID: social:independent:learning-protocol:v1-criterion

In a separate voluntary practice task, a learner traces a displayed route continuously. Stage 1 accepts at least 4 seconds of tracing, stage 2 at least 8 seconds, and stage 3 at least 12 seconds. Each qualifying attempt receives one token. Advance after two consecutive qualifying attempts at the current stage, then reset the streak; the new stage starts on the next attempt. Observed durations are 4, 5, 7, 8, 9 and 12 seconds. A failed attempt resets the streak to zero. The record measures duration, not route accuracy.

Record comparison

Citation ID: social:independent:learning-protocol:v1-comparison

Forty volunteers are randomly assigned in equal groups. One group receives gradual criteria, tokens and individual coaching; the other receives final-target-only criteria, tokens and written instructions without coaching. On the next day all 40 take the same new-route test with identical instructions, no coaching and no tokens. Before any test feedback, 14 of 20 in the first group and 10 of 20 in the second meet a predefined accuracy standard. These invented counts illustrate design reasoning, not a real treatment effect.

Record brief

Citation ID: social:independent:learning-protocol:v1-brief

A report claims: rule T delivers at second 14 even without a response; the duration task reaches stage 3 on attempt 4; and the randomized comparison proves shaping alone permanently improves every learner. Participants could decline practice without losing services or course credit. No longer-term results, representative sampling or component-separated conditions are supplied.

This case is shared across paths that use it. Revisiting it in another course retains drafts and known review-note exposure; it is not a new unseen assessment.

Loading application evidence…

NEW APPLICATION · VERSION 1

Audit a wayfinding learning and measurement claim

Use this packet for a fresh written application. All records below are original fictional teaching materials. They test reasoning under stated conditions and do not establish actual historical or population facts. Your original course-project draft remains separate.

Record assignment

Citation ID: social:independent:wayfinding-transfer:v1-assignment

A fictional museum randomly assigns 48 consenting adult volunteers equally to two 15-minute practice packages. Guided practice uses highlighted routes and tutor prompts; comparison practice uses the same maps with written instructions but no tutor. Both have the same scheduled time. Randomization is of the complete package, not of highlighting, prompts and human contact separately. This is a supplied analysis exercise, not a study for learners to run.

Record immediate

Citation ID: social:independent:wayfinding-transfer:v1-immediate

On the final practice map, 22 of 24 guided participants and 18 of 24 comparison participants reach the destination. Their assigned supports remain available. The measured outcome is reaching that destination under the assigned practice conditions; no explanation or delayed performance is required.

Record followup

Citation ID: social:independent:wayfinding-transfer:v1-followup

One week later the intended outcome is reaching a destination on a new map without support. Sixteen guided participants attend: 12 succeed and 4 do not. Twenty comparison participants attend: 14 succeed and 6 do not. The other 8 guided and 4 comparison participants have no recorded outcome or reason for absence. Each missing participant could either succeed or not succeed. No assumption relating attendance to success is supplied.

Record measurement

Citation ID: social:independent:wayfinding-transfer:v1-measurement

The follow-up task additionally requires reading unfamiliar map abbreviations and submitting a typed route within 45 seconds. The stated target construct is spatial route planning, not typing speed or specialist vocabulary. All attendees receive the same test, but no evidence is supplied that the two groups have equivalent typing skill, vocabulary or experience with this map format. Random assignment does not prove exact balance in this small realized sample.

Record repeat

Citation ID: social:independent:wayfinding-transfer:v1-repeat

Separately, 24 other volunteers repeat this binary follow-up classification on two occasions. Nine meet the rule on both occasions, three meet it only on the first, one meets it only on the second, and eleven meet it on neither. Raw item scores and the interval between occasions are not supplied. These volunteers are not members of the randomized practice groups.

Record claim

Citation ID: social:independent:wayfinding-transfer:v1-claim

A proposed report says: guided practice causes lasting spatial ability because it wins immediately and among follow-up attendees; missing people can be ignored because assignment was random; 83.3% repeat agreement means a reliability correlation of 0.833 and proves the test is valid; the tutor prompts alone caused the benefit. No evidence beyond this packet is offered.

This case is shared across paths that use it. Revisiting it in another course retains drafts and known review-note exposure; it is not a new unseen assessment.

Loading application evidence…

Course references