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. It is important for the study of behaviour of many organisms.
What is a comparative investigation?
Comparative Investigation:
Involve collecting data on different populations/organisms
, under different conditions (ex. Times of year, locations), to make a comparison. Example – Using a hand lens to examine the color and texture of four different rocks.
What is one limitation of comparative investigation?
Which is a limitation of comparative investigations?
They give results that are usually not repeatable by other scientists
. They might show variable relationships that are not actually cause and effect. They can usually only be conducted in labs instead of in natural environments.
What is the difference between descriptive and comparative investigation?
Descriptive Investigation: Involve describing and/or quantifying parts of a natural system. Example – observing cells under a microscope and diagramming what is seen. Comparative Investigation: Involve
collecting data on collecting data on different populations/organisms
, under different conditions (ex.
Which statements best describes comparative and descriptive investigations?
Terms in this set (10) Which statement best describes comparative and descriptive investigations? They both include
a question, procedure and conclusion
.
When can you use comparative investigation?
Comparative investigations involve collecting data on
different organisms
/objects/features, or collecting data under different conditions (e.g., times of year, temperatures, locations) to make a comparison.
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.
What are 3 methods of investigation?
There are three types of scientific investigations:
descriptive, comparative and experimental
.
What are 3 types of investigations?
There are three types of field investigations—
descriptive, comparative, and correlative
.
What are the 2 types of scientific investigations?
The two types of scientific investigation include
fieldwork
, which is the process of collecting evidence outside the laboratory to determine how variables work in a natural setting, and experiments, which involve doing scientific procedures under controlled conditions inside a laboratory.
What are the steps of descriptive investigation?
- Make an observation about a phenomenon (qualitative and/or quantitative)
- Ask a research question.
- Hypothesize a possible answer for your question.
- Create a procedure to test your hypothesis.
- Identify what you are testing.
- Identify your control group/experimental group.
What are the different parts of an experimental investigation?
Include the following:
research topic or question, hypothesis, experimental procedure, materials, results (with data), and conclusion
.
What are the three types of variables in scientific investigation?
An experiment usually has three kinds of variables:
independent, dependent, and controlled
.
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.
What is always included in a comparative investigation?
A comparison
is always included in a comparative investigation.
Does a descriptive investigation include variables?
A descriptive investigation includes
a question but no hypothesis
. Observations are recorded, but no comparisons are made and no variables are manipulated.
