2.3 Word Study Skills (Primary 1-Intermediate 1): Structural Analysis & Phonetic Analysis

Word Study Skills on Stanford 10

Word Study Skills checks whether students can analyze how words are built and how letters represent sounds. Pearson's scope and sequence places it at four levels:

On a Student Report with Clusters, Word Study Skills is broken into three content clusters:

1. Structural Analysis: word parts, including base words, inflected endings, prefixes, suffixes, compound words and contractions.
2. Phonetic Analysis-Consonants: single consonants, blends, digraphs and silent consonant patterns.
3. Phonetic Analysis-Vowels: short and long vowels, vowel teams, diphthongs and r-controlled vowels.

The subtest ends after Intermediate 1. From Intermediate 2 onward, reading is measured by Reading Vocabulary and Reading Comprehension only.

Phonetic Analysis: Consonant and Vowel Patterns

The two Phonetic Analysis clusters, Consonants and Vowels, ask students to connect printed letter combinations to spoken sounds. These are the high-frequency patterns to master:

• Consonant Blends: Two or three consonants appearing together where each individual consonant sound is retained (e.g., bl, cr, st, str, spl as in blend, cross, strap).
• Consonant Digraphs: Two consonant letters that combine to represent a single, distinct phoneme (e.g., ch, sh, th, wh, ph as in chip, ship, thin, whale, graph).
• Short vs. Long Vowel Patterns: Closed syllables creating short vowels (CVC pattern: hop, pin, mat) versus open syllables or vowel-marker patterns creating long vowels (CVCe pattern: hope, pine, mate; and CVVC vowel teams: boat, rain, beet).
• Vowel Diphthongs & Glides: Complex vowel sounds that glide from one vocalic position to another within the same syllable (e.g., oi/oy in coin and boy; ou/ow in shout and cow).
• R-Controlled Vowels: Vowels whose pronunciation is modified by an immediately following 'r' (ar in barn, er in fern, ir in bird, or in cord, ur in burn).

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Structural Analysis: Word Parts

The Structural Analysis cluster asks students to break words into meaningful parts: base words, endings, prefixes, suffixes, compound words and contractions.

Root Words and Base Words

A base word is a standalone English word that can receive affixes (e.g., kind in unkindness). A root word is a foundational morpheme—frequently derived from Latin or Greek—that carries core meaning but may not stand alone (e.g., struct meaning "to build" in destruction). Practice items often ask students to identify the base word of a word that has one or more affixes.

   [Prefix]    +    [Base Word]    +    [Suffix]
     un-                help              -ful       -->  unhelpful
 (not / opposite)     (to assist)      (full of)           ("not full of assistance")

Inflected Endings and Orthographic Spelling Alterations

Inflected endings change the tense, number, or degree of a word without altering its core grammatical category. Structural Analysis items can test whether students recognize the base word even when its spelling changes as an ending is added:

1. The 1-1-1 Doubling Rule: In a one-syllable word ending in one vowel followed by one consonant, the final consonant doubles before a suffix starting with a vowel (hop + -ing = hopping; run + -er = runner). Distractors include misidentifying the base as a word with a long vowel (hope).
2. The Drop Silent -e Rule: When adding a vowel suffix to a base word ending in a silent e, the e is dropped (bake + -ing = baking; shade + -y = shady). Students must recognize that the underlying base word retains the silent e (bake, not bak).
3. The Change y to i Rule: When a base word ends in a consonant plus y, the y changes to i before adding suffixes like -es or -ed (hurry + -ed = hurried; baby + -es = babies). The base word remains hurry and baby.

Derivational Prefixes and Suffixes

Unlike inflected endings, derivational affixes create entirely new words or shift grammatical parts of speech:

• Prefixes: Bound morphemes added to the beginning of base words to alter meaning. High-yield prefixes include:
  • re- (again, back): rebuild, repay
  • un- / dis- (not, opposite): unhappy, disconnect
  • pre- (before): preheat, preview
  • mis- (wrongly, badly): misunderstand, misjudge
• Suffixes: Bound morphemes added to the end of base words. High-yield suffixes include:
  • -ful (full of, characterized by): careful, joyful
  • -less (without, lacking): careless, fearless
  • -able / -ible (capable of being): enjoyable, visible
  • -ment / -ness (state or quality of): amazement, darkness
  • -ly (in a manner, forming adverbs): swiftly, patiently

Compound Words

Compound words combine two distinct standalone base words to form a single lexical unit. Students should be able to identify the two words in a compound and infer its meaning:

• Closed Compounds: sunflower, raincoat, backpack
• Open Compounds: ice cream, post office, high school
• Hyphenated Compounds: mother-in-law, well-known

Distractors may try to split words at phonetically plausible but morphologically incorrect boundaries (e.g., splitting carpet into car and pet, which is an orthographic accident rather than a true semantic compound).

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Syllabication Principles for Word Study

Multisyllabic decoding relies on regular syllable-division patterns. Recognizing these patterns helps students decode unfamiliar words systematically:

1. VC/CV Rule (Two Consonants Between Vowels): Divide between the consonants (rab-bit, nap-kin, pic-nic). Both syllables are typically closed, yielding short vowel sounds.
2. V/CV Rule (One Consonant Between Vowels - Open First Syllable): Divide before the consonant (ti-ger, mu-sic, ro-bot). The first syllable is open, yielding a long vowel sound.
3. VC/V Rule (One Consonant Between Vowels - Closed First Syllable): Divide after the consonant when the first vowel is short (rob-in, cam-el, pan-ic).
4. Consonant-le Rule (-C-le at Word End): Count back three letters from the end and divide before the consonant (can-dle, sta-ble, bot-tle).
5. Affix Separation: Divide between base words and their affixes (un-help-ful, re-play-ing).

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Working the Items and Avoiding Distractors

Because Stanford 10 timing is flexible, students can afford to say each choice quietly in their heads and check it before marking.

Common Distractor Types in Word Study

• Visual Similarity Distractors: Words that share identical letters with the target stem but produce different phonemes (e.g., matching head with bead or meat because all share -ea-, even though head contains short /ɛ/ while bead contains long /i/).
• Position Distractors: Choices that contain the target sound in the wrong place (e.g., for "Which word ends with the same sound as bus?", the lure sun begins with /s/ instead of ending with it).
• Truncated Base Word Distractors: Selecting an incomplete base word resulting from failure to reverse spelling alteration rules (e.g., selecting bak instead of bake as the base word of baking).
• Pseudo-Affix Distractors: Words that begin or end with letter patterns resembling common affixes that are actually part of the root morpheme (e.g., confusing uncle as having the prefix un-, or under as having the prefix un-).