Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

Human Behavior Science Fair Project

Handedness and Ambidexterity

Medium
Handedness and Ambidexterity | Science Fair Projects | STEM Projects
Do left-handed people use their non-dominant hand better than right-handed people? You test five left-handed and five right-handed participants on two tasks. They cut out shapes with scissors and screw nuts onto bolts. Each person does both tasks twice: once with each hand. You compare how long each hand takes. Left-handed participants score much closer to 1.0 on the ambidexterity scale. Right-handed participants score around 0.55. That means their non-dominant hand is much slower.

Hypothesis

The hypothesis is that there are more ambidextrous left-handers than right-handers.

Method & Materials

You will test 10 participants by giving them two tasks to complete. The first task is to cut out objects from a piece of paper using one hand. The second task is to fix a nut to a bolt using one hand. The time taken to complete the tasks will be measured using a stopwatch.
You will need 5 left-handed participants, 5 right-handed participants, 10 scissors, 20 copies of paper with 5 objects drawn, 10 bolts and nuts, and 1 stopwatch.

Results

The results showed that the left-handed participants demonstrated a higher level of ambidexterity compared to the right-handers. The hypothesis that there are more ambidextrous left-handers than right-handers was proven to be true.

Why do this project?

This science project is interesting because it shows that left-handed people have an advantage when it comes to ambidexterity. It also shows that ambidexterity can be learned with practice.

Also Consider

To improve the reliability and accuracy of the results, a larger sample of participants should be used. This science project can also be repeated to observe if the level of ambidexterity is affected by the age of a person.

Full project details

Additional information and source material for this project are available below.

Related videos

These videos explain the science behind this project and demonstrate key concepts used in the experiment.
Share this Science Project:

Related Science Fair Project Ideas

Expert Opinions and Taste Choices
Run a taste test where some people hear an expert opinion first and discover whether it changes what they choose.
Medium
Color Popularity in Daily Life
Survey the colors of cars and clothes, then ask people their favorite color and see if the answers match.
Medium
Eye Contact in Familiar and Unfamiliar Settings
Observe people in two different settings and count how often they make or avoid eye contact with those around them.
Medium
Share this Science Project: