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Senin, 20 April 2026

Collecting Quantitative Data
Based on Creswell, Educational Research
Chapter 5
Five Steps in the Data Collection Process
Five Steps in Quantitative Data Collection
- Identify participants (unit of analysis, population, sample)
- Obtain permissions (IRB, sites, participants, parents)
- Decide what information to collect (variables, data types)
- Locate, select, and assess instruments (reliability, validity)
- Administer data collection (standardization, ethics)
The process involves more than simply gathering information; it includes interrelated steps.
Step 1: Identify Participants
Unit of Analysis
The level at which data needs to be gathered:
- Individual (students, teachers, parents)
- Family
- School
- School district
Example: In studying adolescent aggression's impact on school climate, measure aggression from individuals but school climate from entire schools.
Population and Sample
Key Definitions:
- Population: A group with the same characteristic (e.g., all teachers)
- Target Population (Sampling Frame): Group the researcher can identify and study
- Sample: Subgroup selected from the target population
Representative Sample: Individuals selected such that they are typical of the population, enabling generalizations.
Probability Sampling Methods
Most rigorous form - sample is representative of population:
- Simple Random Sampling: Every individual has equal probability of selection (use random numbers table)
- Systematic Sampling: Select every nth individual (e.g., every 5th person on list)
- Stratified Sampling: Divide population by characteristic, then sample from each subgroup proportionally
- Multistage Cluster Sampling: Sample in two or more stages for large populations
Nonprobability Sampling
Select individuals because they are available and convenient:
- Convenience Sampling: Participants who are willing and available
- Cannot claim representativeness
- Still provides useful information
- Snowball Sampling: Ask participants to identify others
- Recruits large numbers
- Don't know exact sample composition
- May not be representative
Sample Size Guidelines
General rule: Select as large a sample as possible to minimize sampling error.
Rough Estimates:
- Experiments: ~15 participants per group
- Correlational Studies: ~30 participants
- Survey Studies: ~350 individuals (varies by factors)
Sampling Error: Difference between sample estimate and true population score. Larger samples reduce this error.
Step 2: Obtain Permissions
Required From:
- Institutions or organizations (school district)
- Specific sites (secondary school)
- Participants or group of participants
- Parents of participants (for minors)
- Campus Institutional Review Board (IRB)
Best practice: Request permission formally in a letter including purpose, time required, activities, benefits, and anonymity provisions.
Informed Consent
Participants must sign before participating. Form should include:
- Purpose of the study
- Procedures and time required
- Risks and benefits
- Right to withdraw at any time
- Voluntary participation
- Anonymity/confidentiality assurances
- Investigator contact information
Institutional Review Board (IRB)
Three Ethical Principles:
- Respect for Persons: Autonomy, voluntary consent, right to privacy
- Beneficence: Weigh benefits vs. risks; minimize harm
- Justice: Equitable participant selection
Sensitive Populations (children, mentally incompetent, prisoners, pregnant women) require heightened review and protections.
Step 3: Types of Data to Collect
Four Major Types:
- Performance Measures - Achievement, intelligence, aptitude tests
- Attitudinal Measures - Surveys, Likert scales assessing feelings
- Behavioral Observations - Checklists, direct recording of actions
- Factual Information - Public records, attendance, grades
Performance Measures
Assess individual's ability on standardized tests:
- Achievement Tests: Iowa Test of Basic Skills (norm-referenced)
- Criterion-Referenced: GED Test, Metropolitan Achievement Test
- Intelligence Tests: Wechsler Intelligence Scale
- Aptitude Tests: Stanford-Binet IQ Scale
- Interest Inventories: Strong Interest Inventory
- Personality Assessment: Minnesota Multiphasic Personality Inventory
Attitudinal Measures
Measure feelings toward educational topics:
- Use unbiased questions
- Encourage honest answers
- Often use Likert scales
Example: "Student Adaptation to College Questionnaire" (SACQ) with 4 scales: Academic Adjustment, Social Adjustment, Emotional Adjustment, Goal Commitment
Limitation: Does not provide direct evidence of actual behavior.
Behavioral Observations
Record specific behaviors using checklists:
- Advantage: Measures actual behavior, not just perceptions
- Disadvantage: Time-consuming, difficult to score
- Requires observer training for consistency
Example: MIDI (Measurement of Inappropriate and Disruptive Interactions) - records context, inappropriate behavior type, and extent of misbehavior.
Factual Information
Numeric data from public records:
- Grade reports
- School attendance records
- Student demographic data
- Census information
- Suspension records
Note: Must scrutinize public documents carefully - availability does not guarantee accuracy. Some documents (health records) are protected by federal regulations.
Step 4: Locate & Assess Instruments
Three Options:
- Use existing instrument (easiest)
- Locate and modify (requires permission)
- Develop your own (most difficult)
Search Strategies:
- Published journal articles
- ERIC database
- Mental Measurements Yearbook (MMY)
- Tests in Print (TIP)
Reliability
Scores are stable and consistent across administrations.
Types of Reliability:
- Test-Retest: Same test, different times (correlation should be .6 or higher)
- Alternate Forms: Two equivalent versions
- Interrater: Multiple observers score similarly
- Internal Consistency: Cronbach's alpha (for continuous variables)
- Split-Half: Kuder-Richardson (KR-20, KR-21)
Validity
Evidence that test scores measure intended construct for proposed use.
Five Sources of Validity Evidence:
- Test Content: Expert review of items
- Response Processes: Fit between construct and responses
- Internal Structure: Statistical relationships among items
- Relations to Other Variables: Correlations with external criteria
- Consequences of Testing: Intended and unintended outcomes
Scales of Measurement
Categorical Scales:
- Nominal: Categories without order (gender, yes/no)
- Ordinal: Ranked order (1st, 2nd, 3rd; "highly important" to "not important")
Continuous Scales:
- Interval/Quasi-Interval: Equal distances (Likert scale: strongly agree to strongly disagree)
- Ratio: True zero + equal intervals (height, income)
Important: Scale type determines statistical test (parametric vs. nonparametric).
Step 5: Administer Data Collection
Standardization:
- Use uniform procedures for all participants
- Prevents bias and ensures comparability
- Train all data collectors
- Written procedures help maintain consistency
Ethical Practices:
- Protect anonymity (assign numbers)
- Maintain confidentiality
- Respect voluntary participation
- Minimize disruption to sites
- Allow withdrawal at any time
Key Takeaways
- Quantitative data collection is a systematic 5-step process
- Rigorous sampling strengthens generalizability
- Ethical permissions and IRB approval are mandatory
- Instrument quality requires reliability and validity evidence
- Standardized administration ensures data integrity
- Every decision must align with research questions
Remember: The process involves more than simply gathering information - it includes interrelated steps that build upon each other.
Senin, 13 April 2026

Bab 18: Reduction of Adverb Clauses
📘 Bab 18
Reduction of Adverb Clauses
to Modifying Adverbial Phrases
Meringkas adverb clause menjadi frasa
Syarat utama: subject clause = subject utama
→ While walking to class, I ran into a friend.
📌 Slide berikut: syarat, time clauses, cause & effect, latihan TOEFL.
⚠️ Syarat Penting & Dangling Modifier
Hanya bisa direduksi jika subject di adverb clause = subject di main clause.
❌ While sitting in class, the phone rang. (dangling modifier)
Perbaiki: While I was watching TV, the doorbell rang.
⏱ Time Clauses (18-2)
- After / before / when / while / since
- Hilangkan subject, ubah verb menjadi -ing
📌 After he finished homework → After finishing homework, Peter went to bed.
⏳ "During the same time"
Kata while bisa dihilangkan, artinya tetap sama.
→ Walking down the street, I ran into a friend.
🎯 Cause & Effect (karena)
-ing phrase sering berarti "because".
✔ Having seen that movie before, I don't want to go again.
✔ Being a doctor, Oskar gets calls at night.
Tanpa being juga bisa: Unable to afford a car, she bought a bike.
📌 Upon / On + -ing
Artinya "when" atau "segera setelah".
On reaching the age of 18, I can get a driver's license.
📝 Contoh Soal TOEFL (Structure)
1️⃣ ______ down the street, I saw a bear.
A. Walk B. Walking C. Walked
2️⃣ ______ a doctor, he knows how to handle emergencies.
A. Is B. Being C. Be
3️⃣ After ______ his homework, he went to bed.
A. finish B. finished C. finishing
4️⃣ Not wanting to miss the bus, ______ ran as fast as I could.
A. I B. the bus C. my friend
🔍 Lihat Kunci Jawaban
1. B (Walking)
2. B (Being)
3. C (finishing)
4. A (I)
✍️ Kesalahan di Written Expression
→ Siapa yang berjalan? backpack? Tidak logis.
📌 Rangkuman Singkat
- ✔ Subject clause = subject utama → boleh reduksi
- ✔ Ubah verb menjadi -ing
- ✔ Upon + -ing = "when / as soon as"
- ✔ Hati-hati dangling modifier
Because she was exhausted, she went to bed early. →
✅ Jawaban
Exhausted, she went to bed early. atau Being exhausted, she went to bed early.
⚠️ 5 Kesalahan Fatal di TOEFL
- 1. Dangling modifier
- 2. Menggunakan because dan frasa -ing sekaligus
- 3. Lupa mengubah verb ke -ing
- 4. Mereduksi padahal subjek berbeda
- 5. Salah memilih upon + V-ing vs when + clause
Selasa, 12 Oktober 2021

Language Criteria for Assessing Grammars
A.
Four Fundamental Language Abilities of Speakers
1. Ability to produce and comprehend Sentences with
no limit as to length.
e.g. The cute little girl who could play baseball very well loved her kitten so much that she put it in her backpack so that she could take it with her everywhere.
We could add more words at various position in the sentence. Actually,
there is no limit, to making the sentence longer.
2. Ability to produce and comprehend an unlimited number
of sentences.
How many sentences can there be in a language? Well, we can derive this
answer from the fact established above, i.e., there is no fixed length to a
sentence. We can always create another sentence by making a prior sentence
longer or by making another sentence that is different from any other. So we can conclude that there is no fixed number of sentences which
a speaker can produce or comprehend.
3. Ability to produce and comprehend novel sentences
Speakers can produce and comprehend sentences that are new (novel) in the
sense that they have never encountered such sentences before. It is not likely.
4. Ability to Produce and Comprehend Grammatical Sentences.
This is the ability to look at the sentence such as “The girl loved her kitten so much that she put in her backpack” is not grammatical
B.
Explaining the Four Abilities with Behaviorist, Psychological
and Structural Linguistic Theories
1.
Nobody's
Whole Sentence Theory.
Nobody's whole Sentence Theory is a very simple and clear inadequate
theory. Basically, according to this theory, a person learns a whole sentence.
They do so by memorizing every sentence that they hear, along with its
surroundings so that sentences may have meaning. In a simple way, it is like
how a child has to learn a language using stimulus like objects, events and
etc. This is to establish the meaning to what they have learned so that it they
can remember it forever.
2.
Watson's Word Association Theory,
Watson Theory makes two essential claims about what language speakers learn:
a.
Speakers learn a number of words and each word
consists of around form which connects to a meaning. The meaning derives from
relating to objects and events in the environment, e.g. the sound form 'boy' is
connected with the object 'boy' in the environment, and
b.
Whenever speakers learn a sentence, they also
learn at the same time the interconnections between the words.
The problem of grammaticality
confounds Watson's theory and renders meaningless its capacity to meet the
criteria of length, number, and novelty. Watso n's theory, therefore, fails to
explain the basic language abilities of speakers.
3.
Staats's Word Class Association Theory,
Staat's word class association theory is the extension of Watson's
theory. In the Watson’s theory, it is the words associated to form sentences.
However, in Staat’s theory, it is the word classes related to each other. In
other words, the word classes have the relations between them. Word class is
part of speech. He stated that a sentence is formed by the association of
words. The sentence then will develop into word classes such as nouns, verbs,
adjectives, adverbs and articles. Staat’s theory is powerful because the word
classes and substitution within a class. The substitution of words can have the
similar characteristics or similar word classes. However, Staats's theory
cannot explain the basic language abilities of speakers.
4.
Fris's Sentence Frame Theory,
When a sentence consists of all of the word classes, then, it is the
Fries’s Sentence Frame Theory. According to Fries’s theory, new sentences will
be produced by substituting the words within word classes. For example, "The
baby cried." which include Article + Noun + Verb word classes. However,
his theory also is inadequate because it is limitless in the multitude of
sentences which will generate or yield both grammatical and ungrammatical
strings happen and there are not differentiated.
5.
Skinner's Sentence Frame Theory.
According to Skinner (1957, p. 346), speakers learn 'standard patterns' or 'skeletal frames' as a basis for sentence composition. This is similar to Fries's theory of sentence frames except that it restricts the composition of frames to that of 'key responses', nouns, verbs, and adjectives. Knowledge of frames permits a speaker to order the key responses. Once key responses are ordered, other words may be added, e.g. 'a', ' the', 'some', and 'all' for 'quantification', and ' is', 'not' , ' like', and 'as' for 'qualification' . Thus, for example, given the key responses 'hungry' and 'man' in composing a sentence, they will be ordered on the basis of the frame Noun + Adjective as 'man' + 'hungry' and then quantified and qualified with ' the' and 'is' to yield the sentence, 'The man is hungry'. Therefore, Skinner's theory is also inadequate because his theory failed to explain the four language abilities of speakers.
sentences
Why do We Forget?
No one can remember everything. An essential part of the memory process is making decisions about what information is valuable to you and worth the effort to encode it. Is it really critical to spend energy encoding the name of a woman who occasionally teaches your exercise class when she is only an infrequent substitute? It might be better to choose to learn the name of your neighbor’s new baby. Most people feel very frustrated and even embarrassed when they have to say, “I’ve forgotten.” Rather than blame a faulty memory, consider instead that there are some good reasons for not remembering.
Forgetting occurs in many ways and undoubtedly for many reasons. One reason we forget is that we never stored the information we want to remember in the first place. Because we didn't pay enough attention to it, it was lost from our memory system in a matter of seconds. But even in cases where we seemingly have learned something quite well, we are sometimes unable to remember it later. Psychologists have advanced a number of reasons for this.
A poor memory is caused, then, by the memory trace not having much energy to begin with, by not being recharged or fading with the lapse of time, and by losing its energy to other memory traces. That is to say, the causes of forgetting may be grouped under the following headings: weak impression, disuse, interference and repression
1. Weak Impression
The first cause of forgetting is not properly attending to what we wish to remember. The result is that the experience does not make a strong enough impression on us.
Attention means directing mental activity towards a mental or physical object or situation. For example, when I think of something I did last week, I am attending to my memory of the event. This memory is a mental object. On the other hand, when I admire a beautiful view, I am attending to a physical object.
Attention is to the mind what the power of focusing the lens is to a camera. If the camera is not properly focused, the resulting photograph will not be clear. So a wobbly, vagrant mind does not get clear pictures and consequently finds it difficult to bring them back to memory.
Upon the clearness and truth of first impressions must depend the ease and speed of their reproduction. We cannot hope to recall past events or experiences with certainty if our perception of them is not clear and reliable.
The practical use of the law of attention is seen when we realize that it is the first step in all the higher mental processes. The art of memory is primarily the art of attention. We forget because we do not pay sufficient attention to what we wish to remember in order to imprint it firmly on the mind. A good memory, therefore, depends upon attention towhat is to be remembered. Since one cannot attend to more than one thing at once
2. Disuse
The second cause of a faulty memory is letting the trace fall into disuse, or not repeating the experience in order to refresh the memory. It is normal to forget most of what is learned within a few days after learning it — unless it is constantly revised to keep it fresh in mind. For example, a man said: 'Whenever I read a book I grasp with ease what it contains, but unfortunately after only a few days I forget almost all of it. What can I do about this?' A memory trace tends to decay with the lapse of time. For example, another man admitted: 'I have a shocking memory. Whatever I study in the morning is forgotten by evening.'
Much of what we learn is forgotten almost as soon as we have learned it. The little that remains after that is forgotten more slowly. The psychologist Ebbinghaus, who carried out the most important early work on memory, found that after one hour 56 per cent ofthe material which he had studied was forgotten; but after nine hours only a further 8 per cent had been forgotten; after two days only a further 6 per cent, and only a further 7 percent after as long as one month. In other words, about 70 per cent of the amount which was forgotten in the first month was forgotten in the first hour of that month. Consequently, it is most economical to refresh our memory about something as soon as possible afterwards, rather than to wait until some time has elapsed.21 This principle is important not only in learning but in teaching,
especially in such forms of 'teaching' as propaganda, direct-mail advertising, etc. In other words, if a person reads a sales letter, he will give it his best attention at the time but in spite of this he is likely to forget most of it quite soon afterwards. The rate of forgetting, which is rapid in the first few hours, becomes less rapid later on.

Berkomunikasi Dengan Tujuan Instruksional
Sangat penting bahwa guru dapat mengkomunikasikan tujuan instruksional mereka kepada siswa. Jika Anda adalah anggota dari American Automobile Association (AAA), lembaga itu dapat sangat membantu dalam merencanakan perjalanan. Yang harus Anda lakukan adalah memberi tahu mereka ke mana Anda ingin pergi dan mereka dapat mengumpulkan Trip Tik untuk Anda, merakit peta yang menunjukkan berbagai jalan raya dan jalan raya di seluruh Amerika Utara. Jika Anda sedang menuju ke New York ke California, mereka dapat merencanakan rute utara, rute selatan, atau a rute pusat bahwa semua akan membuat Anda berakhir di tempat yang sama. Tapi sebelum ada yang bisa memulai rute perjalanan, Anda harus memberi tahu mereka di mana Anda ingin berakhir. Dan jika Anda tidak tahu ke mana Anda pergi, Anda tidak akan tahu kapan Anda sampai di sana. Anda tidak akan tahu bahkan jika Anda tidak pernah sampai di sana!
Merencanakan unit instruksional, kursus, atau keseluruhan kurikulum, dalam banyak hal, seperti merencanakan perjalanan. Ada banyak tempat berbeda untuk dikunjungi, dan banyak cara berbeda untuk dapatkan sebagian besar dari mereka, tetapi sebelum Anda dapat mulai merencanakan bagaimana mencapai tempat yang Anda inginkan, Anda harus memutuskan di mana Anda ingin berakhir. Tujuan instruksional dan tujuan (IGOS-Instructional and goal objectives) adalah sarana untuk memperjelas keputusan itu.
Tyler (1949) mengemukakan ada empat pertanyaan mendasar yang harus dijawab: dalam mengembangkan kurikulum atau rencana pengajaran:
1. Hasil apa yang harus dicapai?
2. Pengalaman apa yang dapat diberikan yang kemungkinan besar akan mencapai hasil diatas?
3. Bagaimana pengalaman-pengalaman ini dapat diorganisasikan secara efektif?
4. Bagaimana kita dapat menentukan apakah hasil-hasil ini telah dicapai?
Gagasan menulis tujuan instruksional tentu bukan hal baru. Penulis di bidang Komunikasi telah menekankan pentingnya menentukan maksud dan tujuan seseorang sebelum bersiap untuk berbicara selama lebih dari 2.000 tahun, sejak zaman Aristoteles dan Cicero. Selama 40 tahun terakhir, metode mempersiapkan tujuan instruksional telah diajarkan kepada beberapa generasi guru selama pelatihan prajabatan mereka; sebuah praktik yang ditinggalkan sebagai mekanisme perencanaan yang berarti oleh banyak dari mereka segera setelah mereka masuk ruang kelas mereka sendiri. Bab ini akan membahas mengapa beberapa guru membenci tujuan instruksional, mengapa mereka memiliki nilai kritis, dan apa yang harus mereka komunikasikan.
Occupation Prospects for English Education Graduates
- Write and speak effectively
- Edit someone else’s writing
- Express your creativity in any number of ways (design a brochure, write a campaign letter, reorganize an office, and others)
- Learn new information quickly
- Work well with others
- Develop hypotheses, research data, and interpret and summarize data
- Organize ideas and information
- Think critically and solve problems
- Account executive
- Actor/actress
- Analyst
- Artist
- Bank officer
- Biographer
- Book critic
- Bookstore manager
- Business manager
- Circulation assistant
- City manager
- Columnist
- Comedian
- Comedy writer
- Communications manager
- Congressional aide
- Crossword puzzle writer
- Curator
- Curriculum planner
- Desktop publisher
- Director
- Documentation specialist
- Editor, film/video
- Editorial assistant
- Educational program specialist
- Entertainment agent
- ESL teacher
- Fact checker
- Fashion merchandiser
- Fundraiser
- Greeting card writer
- Hotel manager
- Human resources corporate communication
- Human resources trainer
- Insurance agent
- Interpreter and translator
- Lawyer
- Legal assistant
- Literary agent
- Lobbyist
- Magazine writer
- Manuscript reader
- Market research
- Media planner
- Narrator
- Novelist
- Paralegal
- Personnel manager
- Playwright
- Poet
- Politician
- Pollster
- Product manager
- Proofreader
- Public information specialist
- Publicity assistant
- Research assistant
- Sales representative
- Script reader
- Singer
- Special events coordinator
- Speech writer
- Sports writer
- Technical consultant
- Travel writer
- Video scriptwriter/producer
- Web content manager
- Web developer