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26 Cards in this Set
- Front
- Back
- 3rd side (hint)
Ecosystem
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the sum total of biotic and abiotic components of an area and their interactions
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Ecological succession
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Succesion-a series of diff communities each one altering the area, making it more favorable for the next succesive stage
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Primary succession
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the 1st community or life in an area
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Secondary succession
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needs to be in an area that already had life ex. corn field not natural
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monoculture
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man maintains, not natural
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Ecosystem
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a community and its abiotic env
complex and stable, many interactions |
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biom
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large area that has typical vegetation, climate
ex. tundra, desert, rainforrest |
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Abiotic environmental factors
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Latitude- how close bioms are the the equator
Insolation- how much sunlight is hittin the land Air currents and ocean currents Topography-ex. flat lands, hills= drainage and insolation |
LIAOT
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Autotrophs
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make their own food
plants through photosynthesis |
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Herbivores
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feed directly on plants
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Carnivores
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feed on animals
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Omnivores
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feeds on both
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Detritivores
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feeds on dead
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Validity
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the extent to which an experiment tests what it is supposed to test
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Internal Validity
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the extent to which an experiment ensures that the IV is responsible for any changes in the DV
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Threats to Internal Validity
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History effects
Maturation Testing Instrumentation Selection Bias Attrition |
HMTISA
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External Validity
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the extent to which the results of an experiment can be generalized to the real world
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Threats to External Validity
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Sample characteristics
Stimulus or setting characteristics |
SS
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Mundane realism
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making the experiment like the real world
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experimental realism
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making the experiment feel realistic to the participants
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Construct Validity
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the extent to which a hypothesized conceptual explanation of an experimental effect is justified
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Threats to Construct validity
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experimenter effects
demand characteristics |
ED
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Reliability
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the extent to which an experiment or measure gets consistent results
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Interrater reliability
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the extent to which different raters or judges give the same result
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Internal Consistency
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the extent to which different items w/in a measure give the same result
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Test-retest reliability
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the extent to which the same results are found at different times
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