Hypothesis is to _____ as theory is to _____
a. an organized system of assumptions and principles that attempts to explain certain phenomena and how they are related; a prediction regarding the outcome of a study
b. a prediction regarding the outcome of a study; an organized system of assumptions and principles that attempts to explain certain phenomena and how they are related
c. not used in science; used in science
d. used in science; not used in science
b
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Which one of the following research studies could yield information about evidence of validity based on the content of a test?
a. A study that involves performing a series of systematic steps during test development b. A study that involves correlating test scores with a previously identified performance measure c. A study that involves correlating test scores with another previously identified test d. A study where test takers provide their opinion on how well test questions relate to the test topic
An educational researcher randomly assigns 20 health classes to either receive a violence prevention curriculum for 5 weeks or to receive the usual health curriculum during the five weeks. What type of random assignment is this?
A. simple random assignment B. stratified random assignment C. matched random assignment D. cluster random assignment
According to the results of the 1990 Ontario Mental Health Supplement study, the biggest early risk factor for a subsequent mental disorder is:
a) Failure to graduate from high school b) Low income c) Being unemployed d) None of the above
Most laboratory studies show that consumption of alcohol generally does increase aggression
Indicate whether this statement is true or false.