experimental design
students who study with background music will remember more words than those who study in silence
hypothesis
what do the results say ? did they support the hypothesis ?
conclusion
particles are tightly packed and vibrate in place
solid
gas , liquid
condensation
solid ,liquid ( ice < water
melting
presence of music ( music vs silence )
independent variable
number of words correctly recalled (score 0-10)
dependent variable
particles are far apart and move freely
gas
plasma , gas
deionization
liquid , solid ( water < ice )
freezing
who or what you're testing & how many .
participants/sample
same word list ,same room,same lighting , same time allowed to study (10 minutes ) same testing interval same age range of participants & no prior exposure to the word list
controlled variables
particles are close together but can move around eath other
liquid
solid , liquid
melting
liquid , gas ( water < steam )
evaporation / boiling
how you'll measure & record results
data collection
10 word neutral word list ( e.g.,apple ,chair , river , pencil, blanket ,mirror , bridge ,candle , guitar
materials
particles are ionized (charged ) and move very fast
plasma
liquid , gas
evaporation / boiling
gas , liquid ( steam < water )
condensation
decide how you'll compare groups
analysis
randomization assigning participants to groups to reduce bias .
randomization
liquid , solid
freezing
gas , plasma
ionization
solid , gas ( dry ice < co2 gas )
sublimation