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BIOMED
| Question | Answer |
|---|---|
| What types of data are usually collected on a polygraph? | It measures breathing rate, heart rate and blood pressure, skin conductivity, physical movement, different in voice |
| what is a presumptive test? | indicates the possible presence of a substance, but it does not confirm it with certainty. |
| What is a confirmatory test? | Highly specific and accurate test used to definitely identify a substance or condition. |
| what are the benefits of the presumptive and confirmatory test when examining forensic evidence? | They create a reliable and efficient process. 1. speed and efficiency, cost effective 2.high accuracy, specific identification, legal admissibility |
| Identify and explain 2 types of presumptive blood tests. How do they differ? | Kastle-meyer test- great for small, visible stains; changes color Luminol- ideal for detecting cleaned or hidden blood; glows in the dark. |
| explain the difference between independent and dependent variables. |