Planning and Focus-on-form in Task- Based Language Learning Ryo Nitta University of Warwick TBLT...
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Transcript of Planning and Focus-on-form in Task- Based Language Learning Ryo Nitta University of Warwick TBLT...
Planning and Focus-on-form in Task-Planning and Focus-on-form in Task-Based Language LearningBased Language Learning
Ryo Nitta
University of Warwick
TBLT ConferenceLeuven, 2005
IntroductionIntroduction
1. Two research traditions in SLA: planning and focus-on-form
2. The study: analysis of task performance and verbal protocols
3. Findings of task performance analysis
4. Implications
5. Issues for the second stage
Types of Planning (Ellis, 2005)Types of Planning (Ellis, 2005)
Planning
Pre-task planning
Within-task planning
Rehearsal (task repetition)
Strategic planning
Pressured
Unpressured (on-line planning)
Strategic vs. On-line PlanningStrategic vs. On-line Planning
1. Strategic planning
• Information-processing model
• Skill-learning model
2. On-line planning
• L2 Monitoring (Morrison & Law, 1983)
• Careful within-task planning (Yuan & Ellis, 2003)
Summary of the Previous ResearchSummary of the Previous Research
Fluency Complexity Accuracy Source
Strategic
Planning
Positive Positive Limited e.g., Crookes (1989), Foster & Skehan (1996)
On-line
planning
Negative Positive Positive e.g., Ellis (1988), Yuan & Ellis (2003)
Focus-on-Form InstructionFocus-on-Form Instruction
• The noticing issue: Do learners have the cognitive resources to notice the gap between their IL utterances and the TL utterances around them?
• The interruption issue: Is a pedagogical intervention that does not interrupt the learner’s own processing for language learning even possible?
• The timing issue: If so, then precisely ‘when’, in cognitive terms, should the pedagogical intervention occur? (Doughty, 2001)
Identifying a Link between Planning Identifying a Link between Planning and Focus-on-Formand Focus-on-Form
• Theoretical issue: Strategic planning facilitates a learner-driven focus-on-form (Ortega, 1999, 2005)
• Methodological issue: A process-product approach to planning. How do L2 learners plan during strategic planning time? (Ortega, 1999, 2005; Sangarun, 2005)
Research QuestionsResearch Questions
• Do different planning conditions differently influence the oral performance?
• How do L2 speakers plan their speech on-line when their performance is underway? Do they focus on form in on-line planning more frequently than strategic and no-planning conditions?
Research Hypotheses for Task Research Hypotheses for Task Performance Analysis (1)Performance Analysis (1)
• Hypothesis One: Strategic planning (SP) will give more positive influence on fluency, complexity and accuracy than no-planning (NP).
• Hypothesis Two: On-line planning (OP) will give more positive influence on complexity and accuracy, but more negative influence on fluency than NP.
• Hypothesis Three: OP will give more positive influence on complexity and accuracy, but more negative influence on fluency than SP.
Research Hypotheses for Task Research Hypotheses for Task Performance Analysis (2)Performance Analysis (2)
• Hypothesis Four: The effects of SP will interact with the different proficiency levels.
• Hypothesis Five: The effects of OP will interact with the different proficiency levels.
Research DesignResearch Design
Research Stages Contents Comments
1. Pre-Task General instruction
2. Task Task (rehearsal)
Task 1
↓
Task 2
↓
Task 3
3. Post-Task Retrospective interview
NP SP OP
↓ ↓ ↓
SP OP NP
↓ ↓ ↓
OP NP SP
TaskTask
• Story-telling tasks x 3: 6 picture cartoons taken from a popular story-telling resource book for EFL learners (Heaton, 1975).
• Different, but clearly structured tasks (cf. Tavakoli & Skehan, 2005)
• The first obligatory sentence was given to encourage the use of past tense forms in each task, following Ellis (1987).
Task ImplementationTask Implementation
Before Task During Task
No-planning (NP) 30 seconds 2 minutes
Strategic planning (SP) 10 minutes 2 minutes
On-line planning (OP) 30 seconds unlimited
ParticipantsParticipants
• 27 Japanese speakers of English (male = 11, female = 16)
• Length of residence: mean = 11.86 (months), SD = 13.74, Range = 0.25 (i.e., 1 week) - 41.00 (i.e., 3 years and 5 months)
• High vs. Low Proficiency: 6-point global ratings by three raters to judge the NP speech. The average scores were used to categorize high and low proficient groups.
FluencyFluency
1. Pruned speech rates2. Mean length of run3. Total length of pauses per minute4. Number of end-clause pauses per 100 words5. Number of mid-clause pauses per 100 words6. Number of filled pauses7. Number of dysfluencies (i.e., false-starts,
reformulation, repetition and self-correction)
ComplexityComplexity
1. Syntactic complexity: the number of clauses per AS-unit (Foster, Tonkyn and Wigglesworth, 2000)
2. Discoursal complexity: the number of discourse organization devices (Ejzenberg, 2000)
• Chaining integration devices
• Grammatical integration devices
AccuracyAccuracy
1. Global measures: percentage of error-free clauses (e.g., Foster & Skehan, 1996)
2. Specific measures:• Percentage of target-like verb forms (Yuan & Ellis,
2003)• Percentage of target-like article (Crookes, 1989)
Factor AnalysisFactor Analysis
• On the whole, the results of three factor analyses represent three independent dimensions, fluency, complexity and accuracy.
• Mean length of run was selected for MANOVA analysis as a fluency component.
• The number of grammatical integration devices was selected as a complexity component.
• The percentage of error-free clauses was selected as an accuracy component.
Repeated measures MANOVA Repeated measures MANOVA
Effects Value F Hypothesis
df
Error
df
Sig
Between-participants
Proficiency .487 8.08 3 23 .001*
Within-participants
Planning .283 8.45 6 20 .001*
Planning*proficiency .524 3.03 6 20 .028*
Univariate test of within-participant Univariate test of within-participant effecteffect
Source Measure Sum of Squares
df Mean Square F Sig. Location of Sig.
Planning MLR 12.21 2 6.10 9.75 .001* NP>OP, SP>OP
GID 144.65 1.28 113.39 8.84 .003* SP>NP, OP>NP
Error-free 2041.17 2 1020.59 4.36 .018* OP>NP
Planning*
Proficiency
MLR 2.99 2 1.49 2.38 .103
GID 39.91 1.28 31.29 2.44 .122
Error-free 2276.64 2 1138.32 4.86 .012*
ANOVAs in Two Proficiency GroupsANOVAs in Two Proficiency Groups High Low
Measures F Sig. Location of Sig.
F Sig. Location of Sig.
Pruned SR 20.14 .001* NP>OP
SP>OP
22.31 .001* SP>NP
NP>OP
MLR 7.04 .004* NP>OP
SP>OP
4.78 .018*
Mid-clause pauses 1.79 .188 12 .001* NP>SP
OP>SP
Dysfluencies 5.31 .012* SP>NP
OP>NP
10.83 .001* OP>NP OP>SP
Grammatical integration
6.18 .020* SP>NP
OP>NP
4.61 .020* OP>NP
Error-free clauses .04 .957 7.6 .003* OP>NP
TL Verb forms .3 .744 6.28 .006* OP>NP
Specific Accuracy Measures
High LowProficiency Group
70
72
74
76
78
80
82
84
Est
imat
ed M
arg
inal
Mea
ns
planning
NP
SP
OP
Percentage of Targetlike Article
High LowProficiency Group
55
60
65
70
75
80
85
Est
imat
ed
Mar
gin
al M
ean
s
planning
NP
SP
OP
Percentage of Targetlike Verb Forms
ImplicationsImplications
1. Trading-off between fluency and form• Fluency and accuracy• Fluency and complexity
2. Interaction between fluency and proficiency • Monologic story-telling task type? • Dual mode?
3. Interaction between accuracy and proficiency
4. Form-focused effects of on-line planning
Next StageNext Stage
1. To identify the mental operations in the three planning conditions.
2. To identify different mental operations between high and low proficient speakers.
• Strategic planning High proficient speakers
• On-line planning Low proficient speakers