intro to evolution 2.0 scientific method unit 1

what percent of american adults look for online health information

61%

CRAP

C-current

R-reliable

A-authority

P-purpose

Authority

who is the creator, are they still doing research, who is the publisher, who funded the research

reliable

is the information based on scientific evidence, proper resources and citations, acknowledge weaknesses

purpose

motivations, is it biased, trying to sell something?, political

current

how recent is the information and updated

descriptive studies

has no hypothesis or manipulation

non-experimental tests

has a hypothesis but no manipulation

experimental tests

has a hypothesis and manipulation

controlled variables

other variables that could affect the experiment, hold steady in all groups

replication

how many times the experiment is repeated, MINIMUM OF THREE

controlled experiments

manipulate IV and measure DV

most powerful way to establish a causal relationship between IV and CV

control group

established level, outcome of this is already known

treatment group

independent variable manipulated

non-experimental/observational study

no manipulation, lack strong controls, adequate for examining a relationship between two variables

descriptive studies

no manipulation and no hypothesis

simply making observations

used to generate hypotheses for future studies

confounding variable

unmeasured third variable that influences both the supposed cause and the supposed effect