2 Variables? Control? Any way to improve the design?
3 You 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
4 Research the VariableGo the Sheldon Bioconnection, Chapt. 1, Cricket LinksGoogle that behaviorGoogle cricket behaviorGoogle designing an experimentVideo of Cricket Behavior
5 How 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?
8 Problem 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.
9 Make measureable observations EXAMPLE: What constitutes “courtship?”TouchingMoving towardChirpingMountingBitingCricket Mating Video
10 You’ll need numbers for data: Count how many crickets are in an area per minute.Count how many crickets touched another cricket.
11 You will test one variable at a time: What is this one?
12 Any Control? (reference area, maybe clear/neutral area)