cognitive psychology theories for knowledge...
TRANSCRIPT
aposdle – New ways ...
... to work, learn and collaborate!
Cognitive Psychology Theories for Knowledge Management
Tobias Ley, Know-Center
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 2
Overview
What is Cognitive Psychology?
Theories in Cognitive Psychology and Applications in Knowledge Management
Knowledge Space Theory
Application in the APOSDLE Project
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 3
Cognitive Psychology: What it isPsychology: The study of Human Behavior
Explanation and Prediction of Human Mental Processes und Behavior
Validation of Theories and Models
AreasCognition, Emotions
Social and Group Interactions
Individual Differences and Personality
Organizational & Work, Educational, Clinical, Traffic, Forensic
CognitionHigh level functions carried out by the human brain, including comprehension and formation of speech, visual perception and construction, calculation ability, attention (information processing), memory, and executive functions such as planning, problem-solving, and self-monitoring.
MethodsClinical Diagnostic Findings, Expert-Novice Contrasts, Reaction Time Experiments, Computational Models, Brain Imaging Techniques
http://www.lhsc.on.ca/programs/msclinic/define/c.htm
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 4
Cognitive Psychology: Why it is relevant for Knowledge Management
Changing Human Behavior in Organizational SettingsHow to design organizational settings to change human behavior?
Effectiveness, efficiency, health, motivation, satisfaction, …
Focussing on the Human Factor in Interacting with ComputersHow to design interaction, interfaces and information?
Usability, joy of use, learnability, fault tolerance, …
Focussing on Intelligent ApplicationsDesigning computers to behave like humans
More “intelligent” software applications and agents, adaptivity, …
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 5
Theories and their applications
The role of Working Memory: Cognitive Load and Learning
Long term Memory: Propositions and Associative Networks
Long term Memory: Mental Models and Metaphors
A Structural Model of Knowledge Representation: Knowledge Space Theory
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 6
Cognitive Load and Learning
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 7
Die Struktur desGedächtnisses
Cooper (1998)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 8
Sensorisches Gedächtnis
Ultrakurze SpeicherungsdauerVisuell (~ 0,5 sec)
Auditiv (~ 3 sec)
Prä-attentive VerarbeitungWahrnehmungsorganisation nach Gestaltgesetzen
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 9
Langzeitgedächtnis
Inhalt: Wissen und Fertigkeiten
Kapazität: Prinzipiell unlimitiert
ProzesseAktivierung der Inhalte erfolgt über Anfragen des Arbeitsgedächtnisses
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 10
Arbeitsgedächtnis
InhalteGetrennte Systeme für auditiv-sprachliche Inhalte (phonological loop) und visuell-bildliche Inhalte (visual sketchpad)
KapazitätBegrenzte Zahl an Einheiten (<9)
Chunking
ProzesseZentrale Rolle des AG für die Enkodierung
Rolle der Aufmerksamkeit
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 11
Cognitive Load Theory –Theorie der kognitiven Belastung
Was ist kognitive Belastung?Maß an mentaler Aktivität, die das Arbeitsgedächtnis in einer bestimmten Zeiteinheit belastet
Abhängig von der Anzahl der Einheiten, die bewusst verarbeitet werden muss
Cognitive Load ist nicht gleich Aufgabenschwierigkeit
Beispiel: Merken von Zahlenreihen
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 12
Die Rolle der kognitiven Belastung beim Lernen
Warum ist bestimmtes Material schwer zu erlernen?1. Anzahl an zu lernenden Elementen ist hoch
2. Zusammenhang zwischen den Elementen ist groß (“Item Interactivity”), d.h. Elemente können nicht unabhängig von anderen verstanden werden
Beispiel SprachenlernenVokabeln (low item interactivity)
Grammatik (high item interactivity)
Beispiel Verwandtschaften (vgl. Cooper, 1998)True or false? „My father‘s brother‘s grandfather is my grandfatrher‘s brother‘s son“
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 13
Cooper (1998)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 14
Zwei Arten von kognitiver Belastung (1)
Aufgaben-inhärent (“intrinsic”)Nur abhängig von der Schwierigkeit des zu lernenden Stoffs
Zahl und Zusammenhang der Einheiten
Aufgaben-extern (“extraneous”)Abhängig vom instruktionalen Design und vom verwendeten Lernmaterial
Cooper (1998)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 15
Zwei Arten von kognitiver Belastung (2)
Cooper (1998)
leichter Stoff
schwieriger Stoff& unpassendes
Material
schwieriger Stoff& passendes
Material
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 16
Beispiel: Split Attention Effect
Sweller, Chandler, Tierney & Cooper (1990)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 17
Longterm Memory: Propositions and Associative Networks
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 18
Propositionalen Repräsentationen beim Textverstehen
{Lincoln; Präsident-von; USA}
{Lincoln; befreien; Sklaven}
{Krieg; bitter}
Anderson (2000)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 19
Der Aufbau von propositionalenRepräsentationen beim Textverstehen
Repräsentation ist elementaristisch
Prozess ist additiv
Verknüpfung von Elementen erfolgt im Arbeitsgedächtnisdirekt wenn beide Propositionen im AG repräsentiert sind
schwieriger wenn eine Proposition aus dem LZG abgerufen werden muss
am schwierigsten wenn eine „Lücke“ entsteht und eine Inferenz (neue Proposition) gebildet werden muss
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 20
Spreading Activation Model des Abrufsaus dem Langzeitgedächtnis
Ai = Bi + ΣwjSji Sji = 2-log(Fanj)
Untersuchungen zum Fächereffekt (“Fan Effect”)
Anderson & Lebiere (1998)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 21
Longterm Memory: Mental Models & Metaphors
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 22
Empirische Probleme mit Propositionalen Repräsentationen
Hans war auf dem Weg zur Schule …
An der Kinokasse …
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 23
Der Aufbau vom mentalen Modellen beim Textverstehen
Holistische analoge Repräsentationsformi.ggs. zu Propositionen als digitale Repräsentation
Aktivierung von Vorwissen
Elaboration von „Szenarien“Skripts, Schemata, Frames
Top-Down Verarbeitung„Leerstellen“ als Fragen an den Text
Informationssuche oder Inferenz
Fortlaufende Evaluation des Mentalen ModellsÜbereinstimmung mit dem Text
Plausibilität und Vollständigkeit
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 24
Empirische Belege
Mentale Rotation
Schemata bei Schach-Experten (Chase & Simon, 1973)
Navigationsaufgaben in einer Stadt (Perrig & Kintsch, 1985)
Lernen von Zeitzonen (Schnotz & Bannert, 1999)
Lernen von Technischen Systemen (Mayer, Mathias & Wetzel, 2003)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 25
Schnotz & Bannert, 2002
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 26
Beispiel: Mentale Repräsentation von technischen Systemen
Mayer, Mathias, & Wetzell (2003)
Mentales Modell des Systems erlaubt
Bilden von Inferenzen
Interne mentale Simulation von Abläufen
Beantwortung von Transferaufgaben
Lernen als 2-stufiger ProzessZerlegen des Systems in Teilkomponenten
Bilden eines kausalen mentalenModells
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 27
Longterm Memory: Metaphors & Mental Models
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 28
Metaphern imWissensmanagement
Implizites Wissen über “Wissen”Wissen als Bibliothek
Wissen als umkämpfter Schatz
Wissen als Kanalisationssystem
Moser (2003)
aposdle – New ways ...
... to work, learn and collaborate!
Knowledge Space Theory
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 30
Overview
Knowledge Space Theory: the fundamentals
A competency based extension: the Competence Performance Approach
Applying Knowledge Space Theory in modelling for work-integrated learning
Three scenarios for supporting work integrated learningwork-integrated assessment
competency gap analysis
validation
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 31
Knowledge Space Theory –The Fundamentals
Doignon and Falmagne‘s (1999) intention: „to built an efficientmachine for the asessment of knowledge“
Assessing knowledge of a student in a non-numerical and qualitative way
Sharp departure from traditional numeric measurement approaches resembling classical physics
Mathematics in the spirit of current research in combinatoricswith no attempt for obtaining a numerical representation
Starting Point is a possibly large but essentially discrete set of units of knowledge
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 32
Looking at the Person
Knowledge State of a Person determined fromthe performance in thetasks
A knowledge domain can be viewed in two respectsLooking at the Tasks
Solution Dependencieswithin the tasks of a domain
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 33
Tasks can be structured according to a Prerequisite RelationQ Domain of knowledge: Collection of
all tasks in the domain
SR Prerequisite Relation capturingsolution dependencies in the tasksin Q
SR is reflexive and transitive c
ba
Qqr, qr ∈p
ca p cb p ba p
Example
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 34
A Knowledge State describes theknowledge of a person
Example
Q={a,b,c}
K={{},{a},{b},{a,b},{a,b,c}}
c
ba
K∈K K∈∅ Q,
Q Domain of knowledge: Collection of all tasks in the domain
K Knowledge State: A subset of Q
K Knowledge Structure: TheCollection of all Knowledge States
If K is closed under union, theknowledge structure is calledKnowledge Space
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 35
Knowledge Space and PrerequisiteRelation: Two sides of the same coin
(Q,K)
K B∈
a
b
c d
e
ba baa
b c d
e
a
(Q, )p
QXQ⊆p
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 36
Using Knowledge Spaces in Adaptive Tutoring
Falmagne et al., 2004; http://www.aleks.com
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 37
Using Knowledge Spaces in Adaptive Tutoring
Falmagne et al., 2004; http://www.aleks.com
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 38
Knowledge in a domain is modelled as a set of possible knowledgestates
A Knowledge Space can be validated by comparing it to the empiricallyobserved answer patterns
A valid Knowledge Space can be used for individualized and adaptive knowledge diagnosis
What Knowledge Space Theorycan do
(Korossy, 1997)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 39
It is only a descriptive model without consideration for theunderlying cognitive processes
Therefore a transfer of the diagosis to other tasks is notpossible
Gives only a simple recommendations for learning interventions
What Knowledge Space Theorycan not do
(Korossy, 1997)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 40
Competency BasedKnowledge Space Theory
Competence Performance Approach (Korossy, 1993)
Adding a theoretical component underlying the observablesolution behavior
Knowledge is modelled as competence and performance
Competencies: Knowledge and skills needed to produceperformance
Competence model is derived from general or domain specificlearning theories about the development of knowledge and skills
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 41
The Competence Performance Approach
),( PA
A∈x A
P∈Z
Performance Space
x
x x
x
xx
x
x
x
xx
x
x
x
x
xx
)( :k KA ℘→
)( :p AK ℘→
Competence Space ),( Kε
εε ∈ εε
εεε ε
εεε
εε
εε ε
ε
εKK ∈
ε
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 42
Overview
Knowledge Space Theory: the fundamentals
A competency based extension: the Competence Performance Approach
Applying Knowledge Space Theory in modelling for work-integrated learning
Three scenarios for supporting work integrated learningwork-integrated assessment
competency gap analysis
validation
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 43
Work-integrated Learning with APOSDLE
Real Time
Real Place
Real Content
Real Backend Systems
www.aposdle.org
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 44
Modelling for an Adaptive Technology Enhanced Learning Environment
Three Models are needed to support adaptivityKnowledge Base
Student Model
Teaching Model
Albert et al., 2002
Surmise Relation on the set of competencies
Deriving a Competency State from tasks performed in the past
Using competency as a learning goal to devise educational interventions (learning events)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 45
RESCUE: The Learning Domain
“Requirements Engineering” as the learning domain for the first prototype
RESCUE - Requirements Engineering with Scenarios in User-Centered Environments (Maiden & Jones, 2004)
An APOSDLE learning environment for requirements engineers
Tasks and Elementary Competencies
Tasks
3_1 Use the findings of the Activity Model (AM) to identify system boundaries
4_2 Model the system's hard and soft goals
4_3 Interpret the AM and integrate the identified actors and goals into the
Strategic Dependency (SD) Model
4_5 Model dependencies between strategic actors for goals to be achieved
and tasks to be performed
4_6 Model dependencies between strategic actors for availability of resources
5_1 Refine the Strategic Dependency Model
5_2 Refine the Strategic Rationale (SR) Models
5_3 Produce an integrated SR Model using dependencies in the SD Model
5_4 Check that each individual SD Model is complete and correct with
stakeholder goals, soft goals, tasks and resources
5_5 Validate the i* SR Model against the SD Model (cross-check)
Competencies
3 Knowledge about the Activity Model and the activity descriptions
12 Knowledge about the Context Model
13 Knowledge about the Strategic Dependency Model (SD-Model)
15 Knowledge about the Strategic Rationale Model (SR-Model)
16 Knowledge of validating the SR Model
20 Ability to produce an i* Model
Task-Competency Assignment
Competencies
Tasks 3 12 13 15 16 20 Minimal Interpretations
3_1 X X X {3, 12, 13}
4_2 X X {15, 20}
4_3 X X X {3, 13, 20}
4_5 X X {13, 20}
4_6 X X {13, 20}
5_1 X {13}
5_2 X {15}
5_3 X X X {13, 15, 20}
5_4 X X X {13, 15, 16}
5_5 X X X {13, 15, 16}
Task Competency Assignment provides thebasis for1. Competence Performance Structure 2. Prerequisite Relation on the set of
competencies
Ley et al. (2006)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 47
Competence Performance Structure(Example)
Ley et al. (2006)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 48
Prerequisite Relation for SGM Competencies
K3K4
K7K8
K9
K10
K11
K12
K13 K15
K16
K20
S22S23 S29S30
S31
S32
S33
S34
K19
S25
SystemStakeholders
AdjacentSystems
Context Model
Produce ContextModel
System Domain and Environment
Ley et al. (2006)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 49
Three Scenarios for Supporting Work-integrated Learning1. Updating the User Profile from Performed Tasks
2. Suggesting Resources for Learning from a Competency Gap Analysis
3. Validating the Models
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 50
Scenario 1: creating a competency profile from performed tasks
Information on TaskPerformance
+ 5.1 5.2
- 4.3 5.3 5.4
DiagnoseCompetenceState
{ 13, 15}
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 51
Scenario 2: retrieving content for a competence gap (1)
If the goal is to performa task
suggest sequence of competencies to learn
5.3 {20}
5.4 {16}
4.3 {20} or {16}, {3}
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 52
Scenario 2: retrieving content for a competence gap (2)
Invoking a learning templateCompetency {20} Ability to producei*model
Connected to knowledge typeprocedural learning
Invokes a learning template for“Learning by Example”
Retrieving Content from existingdocuments
Learning Template looks for Material Use “Example” and “Procedure”
Domain Concepts: i*model
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 53
Scenario 3: Validating Models with the “Leave One Out” Method
Task performance information (successful vs. not successful) is available for a subset t1 … tn of the tasks
Apply “leave one out” cross validation procedure 1. take out one task (ti) [i=1…n] for which performance information is
available
2. construct a competence performance structure from other n-1 tasks
3. From this structure, predict whether ti is performed successfully
4. Compare prediction to actual performance in ti
5. Increase i=i+1 and go to step 1
Relate correct to incorrect predictions (e.g. by using )τb
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 54
Results for “leave one out” cross validation procedure
τb
Ley et al. (2006)
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 55
Summary: Why we suggest the Competence Performance Approach
Provides close connection of learning to task performance in theworkplace
Derives dependencies on competencies without need to modelthem explicitly
Expertise is not modelled linearly, but there are a number of ways to learn
Formal model allows for validation in the process of modelling, or in the process of operation
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 56
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 57
Thank You!
Tobias Ley
Know-CenterInffeldgasse 21a8010 GrazAustriaPhone: +43 316 873 9273E-mail: [email protected]://www.know-center.at
http://www.aposdle.org
TUG 707.009 Foundations of Knowledge Management
02 Dec 2008 / 58
ReferencesAlbert, D., Hockemeyer, C., & Wesiak, G. (2002). Current Trends in eLearning based on Knowledge Space Theory and Cognitive Psychology. Psychologische Beiträge,
4(44), 478-494.
Anderson, J. R. (2000). Cognitive Psychology and its Implications. New York: Worth Publishing.
Anderson, J.R. and Lebiere, C. (1998). The Atomic Components of Thought, Lawrence Erlbaum Associates
Anderson, L.W., & Krathwohl (Eds.). (2001). A Taxonomy for Learning,Teaching, and Assessing: A Revision of Bloom's Taxonomy of Educational Objectives. New York: Longman.
Conlan, O., Hockemeyer, C., Wade, V., & Albert, D. (2002). Metadata driven approaches to facilitate adaptivity in personalized eLearning systems. The Journal of Information and Systems in Education, 1, 38-44.
Cooper, G. (1998). Research into Cognitive Load Theory and Instructional Design at UNSW.University of New South Wales, Australia. http://education.arts.unsw.edu.au/CLT_NET_Aug_97.HTML
Doignon, J.-P. & Falmagne, J-C. (1999). Knowledge Spaces. Heidelberg: Springer.
Doignon, J.-P. & Falmagne, J-C. (1985). Spaces for the assessment of knowledge. International Journal of Man-Machine Studies, 23, 175-196.
Falmagne, J. C., Cosyn, E., Doignon, J., & Thiéry, N. (2004). The Assessment of Knowledge in Theory and Practice. Unpublished Manusript. Irvine/CA: ALEKS Corp., last accessed on 30 May 2007 at http://www.aleks.com/about_aleks/Science_Behind_ALEKS.pdf.
Hockemeyer, C., Conlan, O., Wade, V., & Albert, D. (2003). Applying Competence Prerequisite Structures for eLearning and Skill Management. Journal of Universal Computer Science, 9(12), 1428-1436.
Korossy, K. (1993). Modellierung von Wissen als Kompetenz und Performanz. Eine Erweiterung der Wissensstruktur-Theorie von Doignon & Falmagne. Universität Heidelberg: Dissertation.
Korossy, K. (1997). Extending the theory of knowledge spaces: a competence-performance approach. Zeitschrift für Psychologie, 205, 53-82.
Korossy, K.(1999). Qualitativ-strukturelle Wissensmodellierung in der elementaren Teilbarkeitslehre. Zeitschrift für Experimentelle Psychologie, 46 (1), 28-52.
Ley, T. & Albert, D. (2003a). Kompetenzmanagement als formalisierbare Abbildung von Wissen und Handeln für das Personalwesen. Wirtschaftspsychologie, 5 (3), 86-93.
Ley, T. & Albert, D. (2003b). Identifying employee competencies in dynamic work domains: Methodological considerations and a case study. Journal of Universal Computer Science, 9 (12), 1500-1518.
Ley, T., Kump, B., Lindstaedt, S. N., Albert, D., Maiden, N. A. M., & Jones, S. V. (2006). Competence and Performance in Requirements Engineering: Bringing Learningto the Workplace. Proceedings of the Joint Workshop on Professional Learning, Competence Development and Knowledge Management, October 2006, 42-52, Crete, Greece (pp. 42-52). Lodon: Open University.
Maiden, N.A.M., & Jones, S.V. (2004a). The RESCUE Requirements Engineering Process – An Integrated User-centered Requirements Engineering Process, Version 4.1. Report, Centre for HCI Design, The City University, London.
Moser, K. S. (2003). Mentale Modelle und ihre Bedeutung: kognitionspsychologische Grundlagen des (Miss)Verstehens. In U. Ganz-Blättler & P. Michel (Eds.), Sinnbildlich schief: Missgriffe bei Symbolgenese und Symbolgebrauch (Schriften zur Symbolforschung, Vol. 13). Bern: Peter Lang (pp. 181-205).
Schnotz, Wolfgang; Bannert, Maria (2002). Construction and interference in learning from multiple representation, Learning and Instruction, 13, 141–156.
Sweller, J., Chandler, P., Tierney, P. and Cooper, M. (1990). Cognitive load and selective attention as factors in the structuring of technical material. Journal of Experimental Psychology: General, 119, 176-192.