Writing a Spanish Critical Response That Addresses Assumptions and Evidence

Writing a Spanish Critical Response That Addresses Assumptions and Evidence

In this lesson, you will write a critical response to a text by reconstructing its thesis accurately, identifying its assumptions, evaluating its evidence, noting what relevant information is omitted, and then stating your own assessment. You will distinguish description of the author's position from your judgment of it and avoid strengthening or weakening the original argument during paraphrase.

Source claim

Text:

La ciudad debería sustituir parte de las líneas nocturnas de autobús por servicios bajo demanda. Según el autor, muchos vehículos circulan casi vacíos después de medianoche y una aplicación permitiría enviar vehículos solo cuando hubiera usuarios esperando. — The city should replace some night bus routes with on-demand services. According to the author, many vehicles run almost empty after midnight and an app would make it possible to send vehicles only when users were waiting.

Step 1: reconstruct the thesis

Faithful:

El autor propone sustituir parte, no todas, las líneas nocturnas por un sistema bajo demanda. — The author proposes replacing some, not all, night bus routes with an on-demand system.

Too strong:

El autor quiere eliminar el transporte nocturno regular. — The author wants to eliminate regular night transport.

The second exaggerates the scope.

Step 2: identify an assumption

Possible assumption:

Los usuarios que necesitan transporte nocturno podrían solicitarlo mediante una aplicación u otro canal accesible. — Users who need nighttime transport would be able to request it through an app or another accessible channel.

If this assumption fails for some users, access may decrease even if vehicles become more efficient.

Step 3: inspect the evidence

Evidence in the source:

En tres líneas, la ocupación media después de medianoche fue inferior al 20 % durante cuatro semanas. — On three routes, average occupancy after midnight was below 20% for four weeks.

This supports a claim about low average occupancy on those routes during that period.

It does not prove:

Todas las líneas nocturnas tienen una demanda insuficiente. — All night routes have insufficient demand.

Step 4: identify omitted information

Relevant missing information:

• how many users depend on fixed routes for work
• whether users without smartphones have another request channel
• response times for an on-demand service
• cost of creating and operating the system

State the omission without claiming intent:

El texto no aporta datos sobre usuarios sin acceso fácil a la aplicación. — The text does not provide data about users without easy access to the app.

Step 5: evaluate the argument

Possible assessment:

La propuesta resulta plausible como prueba limitada, pero la evidencia disponible es demasiado estrecha para justificar una sustitución amplia de líneas. — The proposal is plausible as a limited trial, but the available evidence is too narrow to justify a broad replacement of routes.

Support, do not merely label

Weak:

El argumento es malo. — The argument is bad.

Critical:

El argumento identifica un problema de baja ocupación, pero generaliza desde tres líneas y cuatro semanas sin mostrar si ese patrón se mantiene en otros periodos o afecta de la misma manera a distintos grupos de usuarios. — The argument identifies a low-occupancy problem, but generalizes from three routes and four weeks without showing whether that pattern continues in other periods or affects different groups of users in the same way.

Distinguish description and judgment

Description:

El autor sostiene que un servicio bajo demanda podría reducir recorridos con pocos pasajeros. — The author argues that an on-demand service could reduce trips with few passengers.

Judgment:

La idea merece una prueba, pero necesita una evaluación de accesibilidad y tiempos de respuesta. — The idea deserves a trial, but it needs an assessment of accessibility and response times.

Build a counterargument

Counterargument:

Un servicio fijo ofrece previsibilidad y no exige que el usuario solicite cada viaje. Para trabajadores con horarios nocturnos regulares, esa previsibilidad puede ser parte esencial del acceso. — A fixed service offers predictability and does not require the user to request each trip. For workers with regular night schedules, that predictability can be an essential part of access.

Respond to the counterargument

A balanced critical response can still support testing:

Ese problema no obliga a descartar por completo el modelo bajo demanda, pero sí sugiere que cualquier prueba debería mantener rutas fijas en los corredores con demanda estable y ofrecer un canal alternativo a la aplicación. — That problem does not require completely rejecting the on-demand model, but it does suggest that any trial should maintain fixed routes on corridors with stable demand and offer an alternative channel to the app.

Model critical response

El autor propone sustituir parte de las líneas nocturnas por servicios bajo demanda y apoya la idea con datos de baja ocupación en tres líneas durante cuatro semanas. La evidencia muestra que existen recorridos con pocos pasajeros, pero su alcance es limitado. El argumento presupone además que los usuarios pueden solicitar el servicio con facilidad y que los tiempos de respuesta serán aceptables. El texto no ofrece datos suficientes sobre estas condiciones ni sobre usuarios que dependen de horarios fijos. Por ello, la propuesta me parece razonable como prueba limitada, no como base para una sustitución general. Una evaluación sólida debería medir ahorro operativo, tiempos de espera, accesibilidad y efectos sobre usuarios con horarios nocturnos regulares. — The author proposes replacing some night routes with on-demand services and supports the idea with low-occupancy data from three routes over four weeks. The evidence shows that some trips have few passengers, but its scope is limited. The argument also assumes that users can request the service easily and that response times will be acceptable. The text does not provide enough data on these conditions or on users who depend on fixed schedules. Therefore, the proposal seems reasonable to me as a limited trial, not as a basis for broad replacement. A robust evaluation should measure operating savings, waiting times, accessibility, and effects on users with regular night schedules.

A practical critical-response method

1. Paraphrase the thesis without changing its strength or scope.
2. Identify assumptions the reasoning depends on.
3. Evaluate what the evidence actually supports.
4. Identify relevant missing information without inventing the author's motive.
5. Build support or objection through a clear logical path.
6. Separate description of the source from your evaluation.
7. State your conclusion with explicit limits.
8. Recommend what further evidence would change the assessment.

From Critical Response to Balanced Oral Assessment

You can now critique the reasoning of a text rather than merely disagreeing with its opinion. The next lesson is Speaking Task: Present a Balanced Assessment of a Contested Issue in Spanish.