Got Caffeine? 2024

Observation

Help find answers to questions posted in a scientific experiment; uses 5 senses to gather data

Inference

Assumptions or conclusions made from observations

Hypothesis

A testable prediction; a possible answer to a question; can be re-written and re-formulated

Dependent Variable

The outcome that may "DEPEND" on the independent variable

Independent Variable

The variable (factor) that is being changed in a deliberate way

Experimental group

Group receiving the variable (factor) being tested

Control Group

Used for comparison; doesn't contain the experimental (independent) variable

Constant

Variables (factors) that are kept the same between the control and experimental groups

Qualitative data

Uses information describing color, odor, shape, or some other physical characteristic to collect data

Quantitative data

Uses measurements to collect data

statistically significant

refers to a result that is statistically unlikely to have occurred by chance

Science

An organized way of gathering and analyzing evidence about the natural world.

sample size

The number of subjects used in an experiment or study. Generally, the larger the better.

experiment

a set of controlled observations that test the hypothesis

Homeostasis

relatively constant internal physical and chemical conditions that organisms maintain

Caffeine

a stimulant drug found in coffee, tea, cola drinks, chocolate, and many over-the-counter medications

limitation

A flaw in experimental design that limits apply the results to other scenarios

Validity

The ability of a test to measure what it is intended to measure