Study Guide

Reading Your Belief Inventory

Companion to the unlabeled belief inventory. Its sections are named to match the answer-key themes exactly — open the key, find a theme, turn to that section here.

Faith in Common Study Guide v2 About 15 minutes 4 parts

Part I

How to Use This

Which quiz you took

VersionFormatBest for
Short Form (30 items)Unlabeled agree/disagreeA quick, honest read — still identifies all 21 traditions, with somewhat less separation between close results
Long Form (61 items)Unlabeled agree/disagreeThe most reliable read on what you actually believe
Deep Quiz (27 q, legacy)Branded multiple choiceSeeing the doctrinal map laid out plainly — a teaching tool, not a measurement
Original Quiz (14 q, legacy)Branded multiple choiceA fast orientation — earliest, most limited version

The two legacy quizzes show tradition names as you answer, which makes them good for learning the landscape and bad for measuring yourself — the moment you recognize a label, you're answering the test instead of the question. The short and long forms are the reverse: no labels, so nothing to recognize.

Why the inventory hides its labels

Branded quizzes fail for a specific reason: the moment a word like temple, Theotokos, or Governing Body appears, you stop consulting your convictions and start recognizing a label. You answer the test instead of answering the question.

Six things were done to fix this:

  1. No proper nouns or technical terms. No founders, no places, no Latin.
  2. Bundles broken apart. One branded question that packaged four distinctive doctrines becomes four separate statements, scattered far apart so you can't reassemble them.
  3. Uniform format. In a branded quiz, a two-option question is itself a tell — you know one is the odd one out. Every item now looks identical.
  4. One statement at a time. No list to scan for the outlier.
  5. Cross-cutting coalitions. "Baptism is the moment sins are actually washed away" is affirmed by Churches of Christ, Oneness Pentecostals, Catholics, and Lutherans — four groups that would never place themselves in a category together. Across the inventory, an average of 6.6 traditions affirm any given statement.
  6. Reverse-scored items. Some statements count against the tradition they'd naively suggest, so consistent gaming backfires.

Six statements remain single-tradition, because six doctrines are genuinely held by nobody else: that the Son had a beginning; that Father, Son and Spirit are one person; that tongues are required for salvation; that the Sabbath commandment still names a specific day; and the two competing accounts of how Christ's natures are joined. That's theological reality, not a design flaw — and notably, none of them are the ones that gave the game away before.

Reading your result

Read your top five, not the winner. The score measures pattern-match against the inventory's statements, not spiritual truth. 50% is the neutral baseline — what you'd score answering "Not sure" throughout.

A tight cluster is a finding, not a failure. If several traditions sit within a few points, your convictions genuinely run along a family line (sacramental/liturgical vs. low-church/congregational) rather than a denominational one. That is worth knowing.

Check what drove it. The results screen lists your most decisive answers. Those are load-bearing — the beliefs that would have to change for your result to change.

Expect internal tension, and don't rush to resolve it. It's common to affirm "the Bible alone settles doctrine" and "baptism is the moment sins are washed away." Those sit in real historical tension: most sola-scriptura traditions reject baptismal regeneration precisely because they don't find it clearly enough in Scripture to build on. Noticing a contradiction like that is the most useful thing this instrument can do for you. Incoherence at a few points is the normal condition of a thinking person, not a verdict against you.

A low top score (under ~65%) usually means you're a genuine hybrid — common for people raised in one tradition who have since read and questioned. Anglican, Community of Christ, and non-denominational often surface here because they were historically built as middle paths.

Part II

The History Behind Each Theme

The four questions underneath everything

Nearly every split in Christian history is a fight over one of four things: Who is God? Who has authority to say so? How is a person saved? What do the sacraments actually do? Everything below is downstream.

EraEventTraditions it produced
431Council of Ephesus condemns NestoriusAssyrian Church of the East departs
451Council of ChalcedonOriental Orthodox depart
1054Great SchismCatholic / Eastern Orthodox
1517–1580Luther; Book of ConcordLutheranism
1525Zurich radicals reject infant baptismAnabaptist / Mennonite
1530s+Calvin and the Reformed citiesPresbyterian / Reformed
1534Henry VIII breaks with RomeAnglican
1609 / 1630sEnglish Baptists split over predestinationGeneral / Reformed Baptist
1730s–80sWesley's revivalMethodist
1801–30sFrontier restorationismChurches of Christ
1830 / 1844Joseph Smith; succession crisisLDS / Community of Christ
1844–1863Millerite disappointment, regroupingSeventh-day Adventist
1860s+Holiness revival inside MethodismWesleyan-Holiness
1870sBible Student movementJehovah's Witnesses
1906 / 1913–16Azusa Street; the "New Issue"Trinitarian / Oneness Pentecostal
1970s+Megachurch and parachurch growthNon-denominational
Theme

Nature of God

Nicaea (325) and Constantinople (381) settled that Father, Son, and Spirit are co-equal and co-eternal — the classical Trinity nearly every tradition here still holds. The arguments that produced it weren't abstract: how you answer this determines who you pray to and what salvation even is.

Three later movements broke from it. Jehovah's Witnesses revived a version of the ancient Arian position — the Son is the Father's first creation, not co-eternal. Oneness Pentecostals revived something close to modalism (associated with Sabellius, 3rd c., and condemned then) — Father, Son, and Spirit as one person in three roles. Joseph Smith taught the Father and Son are separate, embodied beings, a clean break from Nicene metaphysics rather than a revival of any ancient position.

Statements on this theme carry the heaviest weight in the inventory, on purpose. Almost nothing else coheres if this answer changes.

Theme

Nature of Christ

Two councils, two permanent splits, and a fight that may have been partly linguistic.

Ephesus (431): Nestorius objected to calling Mary Theotokos ("God-bearer"), preferring Christotokos, fearing it blurred Christ's two natures. He was condemned; churches in Persia sympathetic to the concern became the Church of the East, geographically outside the Roman Empire and never reconciled.

Chalcedon (451): defined Christ as two natures in one person, "without confusion, without change, without division, without separation." Churches in Egypt, Syria, Armenia, and Ethiopia rejected that formula — not because they denied Christ's divinity or humanity, but because they held to one united nature (miaphysis). They became the Oriental Orthodox. Modern ecumenical dialogue suggests both sides may have been closer than either realized, divided partly by Greek versus Coptic and Syriac technical vocabulary. The institutional split has held for over 1,500 years anyway.

Theme

Authority & Revelation

Once you've answered "who is God," the next fight is who gets to keep answering questions like that after the apostles die.

  • Catholic: an unbroken line of bishops from Peter, with the Pope as final arbiter (sharpened at Vatican I, 1870).
  • Orthodox / Oriental / Church of the East: conciliar — Scripture plus the shared mind of the early Church. No bishop outranks the others.
  • Reformation traditions: sola scriptura. This was the central break with Rome, not a side issue.
  • Churches of Christ: took it further — reject Protestant creeds too, aiming to rebuild the New Testament church exactly, with no denominational label.
  • LDS: reopened the canon entirely. A living prophet can add scripture.
  • Community of Christ: kept prophetic structure but moved toward mainline historical-critical scholarship.
  • Jehovah's Witnesses: interpretation centralized in a single Governing Body.
  • Adventist: Scripture supreme, with Ellen White's writings as inspired subordinate counsel — a middle position between closed and open canon.

This is arguably the most consequential theme in the inventory, because it determines how every other disagreement gets settled once it arises.

Theme

Salvation

The Reformation's other core fight, plus a second fight that later broke out inside Protestantism.

Catholic and Orthodox: salvation is a process — grace, faith, and sacraments over a lifetime. Orthodoxy frames it as theosis, becoming like God, continuing past death.

Luther (1517): reacting to indulgences, insisted salvation is by faith alone, a gift, never earned. Calvin went further: God unconditionally elects who will be saved, and the elect cannot finally fall away.

Arminius (Dutch, early 1600s) and later Wesley pushed back — grace enables a real, resistible choice, and believers can fall away. This is exactly why English Baptists split in the 1600s into Particular Baptists (Calvinist) and General Baptists (Arminian), and it's still the fault line between Presbyterian and Methodist today.

Restorationist and Oneness traditions hold a third framework: salvation tied to obedient acts, baptism specifically, rather than to a legal or predestined status. LDS requires grace, faith, and covenant-keeping through ordinances — synergistic in shape like Catholic and Orthodox grace, though very different in content.

If your answers consistently land in “faith alone,” you're Reformation-Protestant in instinct whatever your #1 says. If they land in “grace plus obedience,” you're in the Catholic/Orthodox/LDS/Restorationist family regardless of how differently those four fill in the details.
Theme

Baptism

The test case for whether sacraments are means of grace or symbols of a prior decision.

Catholic, Orthodox, Lutheran, Anglican, and Reformed baptize infants as entry into the covenant. Baptists, Pentecostals, Anabaptists, and non-denominational churches require a conscious personal decision first — this is literally what "Anabaptist" means (ana = again; they rebaptized adults, a capital crime in 1520s Zurich, and were executed for it by Catholic and Protestant authorities alike).

Churches of Christ and Oneness Pentecostals go further still: baptism is the actual moment of regeneration — a position closer to Catholic and Lutheran sacramentalism than to their Baptist and Pentecostal cousins. That surprising alignment is one of the inventory's most useful de-branding items.

Theme

Communion & Sacraments

The range: transubstantiation (Catholic) → real-but-undefined presence (Orthodox) → sacramental union (Lutheran) → real spiritual feeding without physical presence (Reformed, following Calvin) → pure memorial (most Baptist and non-denominational, following Zwingli).

Luther and Zwingli argued this at the Marburg Colloquy (1529), failed to agree, and hardened Lutheran and Reformed into permanently separate traditions.

The "seven sacraments" were formalized in the medieval West (Peter Lombard, 12th c.) and affirmed at Trent (1547) against the Reformers, who kept the two they found instituted directly by Christ.

Theme

Last Things & the Afterlife

  • Purgatory formalized medieval Western theology of post-death purification; Reformers rejected it as unbiblical and — given faith alone — unnecessary.
  • Theosis means Orthodox and Oriental Orthodox see judgment as completing a process already underway, not delivering a one-time verdict.
  • Degrees of glory comes from Joseph Smith's 1832 vision (D&C 76) — a different cosmology from binary heaven/hell.
  • Annihilationism: Jehovah's Witnesses and Adventists both reject eternal conscious torment, but arrive there separately — JW via a restructured 1914 timeline, Adventists via "soul sleep" and the Great Disappointment of 1844, when Christ's expected return didn't occur and the movement reinterpreted the date as the start of a heavenly investigative judgment.
  • Millennium: amillennialism (the kingdom is present and spiritual) is the historic majority across Catholic, Orthodox, Lutheran, and Reformed. Dispensational premillennialism — rapture, tribulation, literal thousand-year reign — is a 19th-century innovation (John Nelson Darby; popularized by the Scofield Reference Bible, 1909), now standard in Baptist, Pentecostal, and non-denominational circles.
Theme

Church Government & Ministry

Governance is downstream of authority, not chosen for itself:

  • Episcopal (bishops in succession): Catholic, Orthodox, Oriental, Church of the East, Anglican, Methodist (modified).
  • Presbyterian (elected elders in ascending assemblies): Reformed churches, following Calvin's Geneva.
  • Congregational (each church autonomous): Baptists, Churches of Christ, non-denominational, most independent Pentecostal churches.
  • Prophet-led: LDS and Community of Christ both retain Joseph Smith's original structure and disagree only on who inherited it.
  • Centralized administration: the JW Governing Body resembles none of the above.
Theme

Saints, Mary & Images

The Iconoclast Controversy (8th–9th c.) nearly split Byzantium before icons were formally restored in 843, still celebrated as the Triumph of Orthodoxy. Reformed churches revived iconoclasm in the 16th century, destroying statues and glass they judged idolatrous. Marian dogmas — Immaculate Conception (defined 1854) and Assumption (1950) — are among the latest formal definitions in Catholic history and are among the sharpest Catholic/Protestant dividing lines.

Theme

Spiritual Gifts & Sanctification

Wesley taught Christians could reach "Christian perfection" in this life — not sinlessness, but a heart wholly turned toward love of God. The 19th-century Holiness movement hardened this into a definite second work of grace after conversion, founding new denominations (Free Methodist, 1860; Church of the Nazarene, 1908) when mainline Methodism didn't press it.

That search for a second blessing fed directly into Azusa Street (1906), which added a third distinctive: Spirit-baptism evidenced by tongues. Then in 1913–16, preachers began baptizing "in Jesus' name" (Acts 2:38) instead of the Trinitarian formula (Matthew 28:19), and some pushed it into full modalism. This "New Issue" split the young movement: the Assemblies of God organized partly in response, formally affirming the Trinity in 1916; Oneness bodies later merged into the UPCI (1945).

Theme

Worship & Practice

  • Saturday Sabbath — Adventists argue Sunday worship was a post-apostolic change, not a biblical one.
  • Set-apart sacred space — LDS temples, but also the Orthodox altar behind the iconostasis. The inventory deliberately scores both.
  • A cappella worship — Churches of Christ apply the regulative principle (do only what Scripture commands or models) more strictly than nearly anyone, concluding instruments aren't authorized.
  • Fixed giving and bodily practice — strongest in LDS and Adventist teaching, where tithing and health discipline are covenant obligations rather than preferences.
Theme

Community & Discipline

Anabaptist pacifism and oath-refusal are the direct legacy of 16th-century persecution — refusing to swear or bear arms was often literally why they were executed. Their "ban" (16th c.) is community-based. Jehovah's Witness disfellowshipping is a formal administrative process, and the two arrive at outwardly similar practice from completely unrelated histories — another deliberate coalition in the item bank.

Theme

Scripture & Creeds

The inerrancy question (does Scripture's accuracy extend to history and natural science?) is the sharpest divide between confessional and mainline wings of the same denominations — it's most of what separates LCMS from ELCA Lutheranism, and it's why the inventory treats them as two traditions rather than one.

Creedal subscription splits differently: Catholic, Orthodox, Lutheran, Reformed, and Anglican treat the ancient creeds as binding. Churches of Christ, non-denominational churches, LDS, JW, and Oneness Pentecostals reject binding creeds — from four incompatible directions.

Part III

The Latter Day Saint Succession Crisis

This one split wasn't a centuries-long argument. It was an afternoon.

Joseph Smith was killed at Carthage, Illinois, on 27 June 1844, without unambiguously naming a successor.

Brigham Young, president of the Quorum of the Twelve, argued the apostles collectively held authority. He led the majority west in 1846–47, where plural marriage was publicly acknowledged (1852) and later discontinued (1890), and temple ordinances continued — becoming The Church of Jesus Christ of Latter-day Saints.

Joseph Smith III was too young to lead in 1844 but was recognized in 1860 by those who never went west and rejected both plural marriage and Young's claim. This became the RLDS Church, renamed Community of Christ in 2001 — which today ordains women, practices open communion, and holds a theology far closer to mainline Protestantism than to Utah.

If the inventory gives you high marks on continuing prophetic authority but also on the Trinity, mainline sacramental practice, and reading Scripture through modern scholarship, Community of Christ is very likely a better description of your instincts than LDS. This is precisely the distinction a labeled quiz could not see.

Part IV

Primary Sources

Read traditions in their own words before drawing conclusions about your top five.

TraditionStart here
CatholicCatechism of the Catholic Church; Vatican II — Lumen Gentium, Dei Verbum
Eastern OrthodoxKallistos Ware, The Orthodox Way; the Nicene Creed; the Philokalia
Oriental OrthodoxCoptic Orthodox catechetical materials; the Armenian Divine Liturgy
Church of the EastThe Liturgy of Addai and Mari; Assyrian Church official statements
LDSThe Book of Mormon; Doctrine and Covenants; Gospel Principles
Community of ChristTheir own Doctrine and Covenants (still being added to); Basic Beliefs at cofchrist.org
Reformed Baptist1689 London Baptist Confession
General BaptistFree Will Baptist Treatise
Churches of ChristAlexander Campbell, The Christian System; individual congregational statements
Anabaptist / MennoniteSchleitheim Confession (1527); Dordrecht Confession (1632); Martyrs Mirror
Lutheran (both)The Book of Concord — Augsburg Confession, Small Catechism
Presbyterian / ReformedWestminster Confession (1646); Calvin, Institutes, Book III
MethodistWesley's sermons, esp. "The Scripture Way of Salvation"; Articles of Religion
Wesleyan-HolinessWesley, "Christian Perfection"; Nazarene Articles of Faith
Trinitarian PentecostalAssemblies of God Statement of Fundamental Truths
Oneness PentecostalUPCI Articles of Faith
AnglicanBook of Common Prayer; Thirty-Nine Articles
Jehovah's WitnessesWhat Does the Bible Really Teach?
Seventh-day AdventistThe 28 Fundamental Beliefs (adventist.org)
Non-denominationalNo single text by design — Nicene Creed plus a specific congregation's statement of faith

Read each as that tradition's presentation of itself, not as a neutral summary of anyone else.

Then do the thing no document can do: visit a service and talk to a pastor, priest, or elder. A text gives you the official position. A conversation tells you how it's actually lived — and lets you ask the follow-up question this guide can't anticipate.