Field Experiment Design and Evaluation

Dr. Drew Hanks from the Smarter Lunchrooms Movement discusses experimental design, focusing on field experiments in school lunchrooms. He explains common data sources, the difference between field and lab experiments, and provides examples of field experiments. The video guides viewers on setting up their own experiments, including identifying changes, setting timelines, and collecting data. The goal is to modify lunchroom environments to encourage healthier student choices. Viewers are invited to apply these concepts in their own lunchrooms.

What is the primary focus of Dr. Drew Hanks' discussion?

• Political surveys

• Experimental design in lunchrooms

• Television viewing habits

• Nutritional guidelines

How do field experiments differ from lab experiments?

• Field experiments change the environment slightly while maintaining natural behavior.

• Lab experiments are conducted outdoors.

• Field experiments control the environment completely.

• Lab experiments allow participants to behave naturally.

What was the result of the pre-ordering study mentioned in the video?

• Students were 92% more likely to select a healthier entree.

• Students were less likely to choose healthy entrees.

• Students preferred unhealthy snacks.

• There was no change in students' choices.

What is the first step in setting up a field experiment in a lunchroom?

• Conducting a political survey

• Analyzing sales records

• Identifying a change to implement

• Collecting tray waste data

During the pre-period of an experiment, what is typically done?

• Conducting surveys

• Analyzing the results

• Collecting data without making changes

• Implementing the change

Which type of data is NOT mentioned as a method for evaluating changes in lunchrooms?

• Transaction data

• Sales data

• Tray waste

• Weather data

What is the main purpose of collecting tray waste data?

• To determine the nutritional value of meals

• To measure the amount of food sold

• To evaluate how much food is actually consumed

• To track the number of students in the lunchroom

What should you consider when planning the timeline for a field experiment?

• The cost of the experiment

• The length of the pre and treatment periods

• The number of students in the school

• The weather conditions

What is the main goal of modifying the lunchroom environment in field experiments?

• To improve the taste of food

• To increase the number of students

• To lead students towards healthier behaviors

• To reduce the cost of meals

Where can you find additional resources for implementing changes in lunchrooms?

• www.schoolmeals.org

• www.smarterlunchrooms.org

• www.healthylunches.com

• www.nutritionfacts.org