2Variables? Control? Any way to improve the design?
3You have one of these variables: Agnostic behavior (aggressive)Sexual (mating,male/female)Phototaxis (light/dark)Stimulus kinesis (food, hot/cold, terrain surfaces, etc.)Courtship (male and female interaction)Territorial (protecting their space)Cricket Fighting VideoAnother fighting video
4Research the VariableGo the Sheldon Bioconnection, Chapt. 1, Cricket LinksGoogle that behaviorGoogle cricket behaviorGoogle designing an experimentVideo of Cricket Behavior
5How do you go from observations to writing a problem statement? Your problem statement must be measureable and start out, “What is the effect of…?”EXAMPLE: What do male crickets do when a female comes near it? BETTER: What is the effect of movement of introducing male crickets in a tank of only female crickets?
8Problem Statement to Hypothesis If the (dependent variable) is related to the (independent variable),the prediction.EXAMPLE: If the movement of female crickets is related to the introduction of male crickets, then more female crickets will move toward the male when they enter the tank.
9Make measureable observations EXAMPLE: What constitutes “courtship?”TouchingMoving towardChirpingMountingBitingCricket Mating Video
10You’ll need numbers for data: Count how many crickets are in an area per minute.Count how many crickets touched another cricket.
11You will test one variable at a time: What is this one?