Evaluating a method: Intro to Scientific Method

What is the learning intention described in the document?

• To understand the basic concepts of scientific inquiry

• To evaluate and improve scientific investigation methods by identifying assumptions, potential errors, and suggesting improvements

• To memorize the steps involved in scientific methods

• To learn about different scientific instruments and their uses

What affects the validity of an investigation according to the learning material?

• The quality of its data.

• The quality of the method.

• The repeatability of the investigation.

• Different types of errors.

What does validity in an investigation refer to?

• The accuracy of the data collected

• How well the investigation answers the question it set out to answer

• The number of variables controlled in the experiment

• The length of time the investigation takes

What are the two main aspects of an investigation that validity is concerned with?

• The accuracy of the hypothesis and the time taken for the investigation

• The impact of the independent variable on the dependent variable and the impact of controlled variables

• The number of participants in the study and the data collection methods

• The equipment used in the experiment and the location of the study

When determining the validity of an investigation, which of the following questions is important to consider?

• Does it test the hypothesis?

• Is the conclusion interesting?

• How many variables are there?

• How many trials were conducted?

What is a key step after testing the hypothesis in determining the validity of an investigation?

• Deciding on the next experiment to conduct

• Publishing the results

• Controlling the variables

• Were variables controlled?

What is one way to identify if an investigation is valid?

• By evaluating the color of the report cover

• By checking the number of participants in the study

• By evaluating the quality of the method

• By determining the length of the investigation

According to the text, what can affect the quality of the method in an investigation?

• The type of paper the report is printed on

• How well variables were controlled

• The number of pages in the report

• The font size used in the report

What are you expected to do when planning an investigation to ensure the validity of the experiment?

• Make assumptions about what will affect the dependent variable and control any factors that aren't the independent variable.

• Ignore the dependent variable and focus only on the independent variable.

• Assume all factors have an equal impact on the dependent variable.

• Change the independent variable frequently to observe different outcomes.

When reflecting on your method, which of the following questions should you ask yourself to evaluate controlled variables?

• Did I control these factors successfully?

• Could anything else have affected the dependent variable?

• Both A and B

• None of the above