

Grammar


Tenses


Present

Present Simple

Present Continuous

Present Perfect

Present Perfect Continuous


Past

Past Simple

Past Continuous

Past Perfect

Past Perfect Continuous


Future

Future Simple

Future Continuous

Future Perfect

Future Perfect Continuous


Parts Of Speech


Nouns

Countable and uncountable nouns

Verbal nouns

Singular and Plural nouns

Proper nouns

Nouns gender

Nouns definition

Concrete nouns

Abstract nouns

Common nouns

Collective nouns

Definition Of Nouns

Animate and Inanimate nouns

Nouns


Verbs

Stative and dynamic verbs

Finite and nonfinite verbs

To be verbs

Transitive and intransitive verbs

Auxiliary verbs

Modal verbs

Regular and irregular verbs

Action verbs

Verbs


Adverbs

Relative adverbs

Interrogative adverbs

Adverbs of time

Adverbs of place

Adverbs of reason

Adverbs of quantity

Adverbs of manner

Adverbs of frequency

Adverbs of affirmation

Adverbs


Adjectives

Quantitative adjective

Proper adjective

Possessive adjective

Numeral adjective

Interrogative adjective

Distributive adjective

Descriptive adjective

Demonstrative adjective


Pronouns

Subject pronoun

Relative pronoun

Reflexive pronoun

Reciprocal pronoun

Possessive pronoun

Personal pronoun

Interrogative pronoun

Indefinite pronoun

Emphatic pronoun

Distributive pronoun

Demonstrative pronoun

Pronouns


Pre Position


Preposition by function

Time preposition

Reason preposition

Possession preposition

Place preposition

Phrases preposition

Origin preposition

Measure preposition

Direction preposition

Contrast preposition

Agent preposition


Preposition by construction

Simple preposition

Phrase preposition

Double preposition

Compound preposition

prepositions


Conjunctions

Subordinating conjunction

Correlative conjunction

Coordinating conjunction

Conjunctive adverbs

conjunctions


Interjections

Express calling interjection

Phrases

Sentences


Grammar Rules

Passive and Active

Preference

Requests and offers

wishes

Be used to

Some and any

Could have done

Describing people

Giving advices

Possession

Comparative and superlative

Giving Reason

Making Suggestions

Apologizing

Forming questions

Since and for

Directions

Obligation

Adverbials

invitation

Articles

Imaginary condition

Zero conditional

First conditional

Second conditional

Third conditional

Reported speech

Demonstratives

Determiners


Linguistics

Phonetics

Phonology

Linguistics fields

Syntax

Morphology

Semantics

pragmatics

History

Writing

Grammar

Phonetics and Phonology

Semiotics


Reading Comprehension

Elementary

Intermediate

Advanced


Teaching Methods

Teaching Strategies

Assessment
Delphi method
المؤلف:
Gipsy Chang & Josephine Csete
المصدر:
Enhancing Teaching and Learning through Assessment
الجزء والصفحة:
P458-C38
2025-08-22
411
Delphi method
One way of building a consensus of experts from a particular domain in a given context is by using the Delphi method.
The Delphi method is a survey technique originally developed in the early 1950's by Olaf Helmer and Norman Dalkey at Rand Corporation in connection with national defense research sponsored by the United States Air Force (1962). The objective of "Project Delphi" was to obtain consensus from a group of experts with different backgrounds on forecasting issues associated with the use of the atomic bomb. The strength of using this method to build consensus on complex issues among a group of experts was recognized widely, and gradually the method has also come to be used for planning, decision-making, structured conferences, and technology assessment in numerous academic disciplines and different fields of interest in the private and public sectors (Tafoya 1986).
The classical Delphi survey is a structured group process. It has been defined by Helmer (1983), one of its creators, as:
A method of communication among experts, aimed at obtaining a consensus of opinion on some particular subject of inquiry. The method employs a series of intensive questionnaires interspersed with summarized information and opinion feedback derived from the responses to the preceding questionnaire (p.76).
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