Cause and Effect: Types, Methods and Examples
Cause and effect is a critical reasoning topic in which one or two statements are given and the candidate has to decide the relation between them. The statements may be related as cause and effect, they may be independent events, or both may be the effects of a common cause. The candidate must find which statement is the cause and which is the effect, or decide that no such relation exists.
The special feature of this topic is that it tests logical sequence rather than language. The candidate must ask whether one event could really have produced the other, and whether the order in which they are written matches the order in which they happened. This article gives a complete deep-study revision of cause and effect. It explains the basic terms, the relation between events, the standard answer options, the common mistakes and a practical preparation plan so that the topic becomes a reliable source of marks in APSC, ADRE, Assam Police, SSC and Railway examinations.
Basic Terms
- Cause: the event that makes another event happen.
- Effect: the event that is produced by the cause.
- Independent events: two events with no causal relation between them.
- Common cause: a third event that produces both the given events.
- Immediate cause: the cause that acts directly and at once.
- Remote cause: a cause that acts indirectly or after some time.
- Causal chain: a series in which one event causes the next.
- Time order: a cause must come before its effect.
- Correlation: two events happening together without one causing the other.
- Common effect: a single result produced by two separate causes.
Core Concepts and Shortcuts
- A cause must occur before its effect in time.
- An effect must be the natural result of the cause and not merely a coincidence.
- If both events are results of a third, unseen event, they have a common cause.
- If neither event can produce the other, they are independent.
- Do not treat mere co-occurrence as causation.
- Consider whether one event is directly responsible for the other and in which direction.
- Read both statements without assuming that the first is always the cause.
- Use the standard options carefully: A cause and B effect, B cause and A effect, both independent, or both effects of a common cause.
Types of Cause and Effect Questions
The first type gives two statements and asks the candidate to decide the relation using the standard options. The second type gives two events that are both effects of a common cause, such as heavy rain causing both a flood and a traffic jam. The third type gives two events that appear related but are in fact independent, such as two accidents on the same day. The fourth type gives a chain of events and asks which is the immediate cause and which is the remote cause. In every type the candidate must test the time order and the directness of the relation.
Steps to Solve a Cause and Effect Question
First, read both statements and note what each event is. Second, check whether the events happen in a time order that allows one to produce the other. Third, test whether the first event, if true, would naturally lead to the second, and also test the reverse direction. Fourth, check whether both events might be the effects of a common cause. Fifth, decide whether the events are independent. Finally, choose the standard option that matches your reasoning, and never assume that the order of writing proves the order of cause and effect.
Examination Trends
In competitive examinations cause and effect is a regular topic and usually carries two to four marks. The common-cause type and the independent type appear often, because they trap candidates who look only at the apparent connection. The topic needs clear thinking and a little reasoning power, and it can be solved quickly once the candidate is used to the standard options.
Common Mistakes to Avoid
- Do not assume that the first statement is always the cause.
- Do not treat two events happening together as cause and effect.
- Do not ignore the possibility of a common cause.
- Do not ignore the possibility that the two events are independent.
- Do not reverse the direction of cause and effect without testing it.
- Do not decide on the basis of the statement order rather than the time order.
How to Prepare This Topic
Begin by learning the four standard options clearly, because every question is answered through them. Then practise the simple cause and effect pairs until the direction becomes obvious. After that, attempt the common-cause and independent type questions, which are the real test. Note down every question in which you were misled by apparent closeness between the events. Practise a few questions daily and read the explanation for each, and this topic will become a quick and reliable scorer in the critical reasoning section.
A final aid is to write the two events as a small timeline before choosing the answer. If the first event normally leads to the second, then the first is the cause; if it does not, test the reverse order; and if neither direction works, suspect independence or a common cause. This simple ordering removes most of the confusion caused by the way the statements are worded. In the examination, cause and effect is quick once the standard options are familiar, so attempt it early; with regular practice it becomes a dependable source of marks in the critical reasoning section.
Frequently Asked Questions
What is cause and effect in reasoning?
Cause and effect is a reasoning topic in which two given events are studied to decide whether one caused the other, whether they are independent, or whether both are effects of a common cause.
What is a common cause?
A common cause is a third event that produces both the given events. Heavy rain causing both a flood and a traffic jam is a common example.
Can two events be independent?
Yes. If neither event can produce the other, they are independent, even if they happen at about the same time.
Does the order of writing decide the cause?
No. The first statement need not be the cause. You must test the time order and the logical direction of the relation.
What is the difference between correlation and causation?
Correlation means two events happen together; causation means one event actually produces the other. Not every correlation is a cause and effect relation.