Experimental investigations are the best type of scientific investigation to demonstrate cause-and-effect relationships because they allow the investigator to actively manipulate variables and control conditions.
Why are experimental investigations the best type of scientific investigations?
Experimental investigations are deemed the most important and the best type of scientific investigation because we can study the cause – and – effect relationship between different variables in a controlled environment . This includes conducting test to test hypothesis and validity of the claims.
Why are experiments useful for demonstrating cause and effect relationships?
Explanation: Repeated experiments which produce results consistent with a cause-effect relationship provide evidence to support the relation hypothesis . Alternately an experiment can be used to disprove a cause-effect hypothesis. It only requires one counter example to disprove a hypothesis.
What is unique about experimental studies that allows you to show a cause and effect?
The unique strength of experimental research is its internal validity (causality) due to its ability to link cause and effect through treatment manipulation, while controlling for the spurious effect of extraneous variable.
Which kind of investigations allow for the control of variables?
Answer Expert Verified An experimental investigation allows you to control the variables. Explanation: Experimental investigations include a method in which a “fair test” is created and variables are actively planned, managed, and measured in an attempt to gather testimony to confirm or negate a causal relationship.
What are experimental investigations the best type of scientific?
Experimental investigations are the best type of scientific investigation to demonstrate cause-and-effect relationships because they allow the investigator to actively manipulate variables and control conditions.
What is a limitation of comparative investigations?
Limitation of comparative investigation is that when it is done on a huge population, huge amount cost is required . Explanation: Benefit of comparative investigation is that we can get descrete information about specific breed or species.
How do you determine a cause and effect relationship?
- The cause must occur before the effect.
- Whenever the cause occurs, the effect must also occur.
- There must not be another factor that can explain the relationship between the cause and effect.
What is the relationship of cause and consequence?
To find cause and effect relationships, we look for one event that caused another event. The cause is why the event happens. The effect is what happened . Sometimes there can be more than one cause and effect. This occurs when one cause brings about an effect; then that effect becomes the cause for another effect.
What are the examples of cause and effect relationship?
Cause and effect is the relationship between two things when one thing makes something else happen . For example, if we eat too much food and do not exercise, we gain weight. Eating food without exercising is the “cause;” weight gain is the “effect.” There may be multiple causes and multiple effects.
What is necessary cause and effect in an experiment?
The three criteria for establishing cause and effect – association, time ordering (or temporal precedence), and non-spuriousness – are familiar to most researchers from courses in research methods or statistics. ...
What are the 3 characteristics of experimental research?
Several kinds of experimental designs exist. In general, designs that are true experiments contain three key features: independent and dependent variables, pretesting and posttesting, and experimental and control groups . In a true experiment, the effect of an intervention is tested by comparing two groups.
Can experiments show cause and effect relationships?
One of the main strengths of experimental research is that it can often determine a cause and effect relationship between two variables . By systematically manipulating and isolating the independent variable, the researcher can determine with confidence the independent variable’s causal effect on the dependent variable.
What are the controls in Lidia’s investigation?
The temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables.
Why are descriptive investigations repeatable?
Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.
Which kind of investigations are meant to provide large amounts of information?
Quantitative , as opposed to qualitative investigations provide large amounts of information about a wide range of variables. Quantitative investigations yield numerous results – they are all about the quantity, or large number of results, whereas qualitative are more about the quality.
