Duplicate of AP Psych Research Methods (Myers Ch. 2)

Experimental factor that is manipulated; variable whose effect is being studied:

All of the following are true of correlational studies EXCEPT:

A factor other than the independent variable that might produce an effect in an experiment:

Group in an experiment that is NOT exposed to the treatment/independent variable; given placebo

Observing & recording behavior in naturally occurring situations while not interfering:

Statistical statement of how likely it is that an obtained result occurred by chance:

Arithmetic average of a distribution of numbers; add all scores, divide by number of scores:

Experimental procedure; both participants & research staff are ignorant about who got placebo

All of the following are true of experimental studies EXCEPT:

Type of study that examines one individual in depth in hopes of revealing things true of us all

The mean score on the Math part of the SAT is 500 with a SD of 100. What % scored between 400-600?

Results/effects caused by expectations alone; independent variable has not been administered:

A measure of the extent to which two factors vary together & how well one predicts the other:

Someone responding positively to the word choice, "aiding the needy" and negative to "welfare"

Tendency to believe one is better at something or right more often than one actually is:

The difference between the highest and lowest scores in a distribution:

Assigning participants in a study to experimental & control groups by chance to avoid bias:

Group in a study that is exposed to the treatment/independent variable:

________ does not equal __________ .

All of the following are true of descriptive research EXCEPT:

All the cases in a group being studies from which samples may be drawn:

Statement of procedures used to define research variables:

Graphed cluster of dots; slope of points suggests direction of relationship between variables:

Research method conducted in a lab involving an independent variable & a dependent variable:

Tendency to believe, after learning an outcome, that one would have foreseen it all along:

The average/mean score is 80; a student who earned a 72 deviated how far from the mean?

A sample that fairly represents a population because each member has equal chance of inclusion:

A statistical index of the relationship between two things (from -1 to +1):

The perception of a relationship between variables where none exists:

The most frequently occurring score(s) in a numeric distribution:

What percentage of scores fall within one standard deviation of the mean on a bell curve?

A computed measure of how much scores vary around the median score:

The middle score in a distribution; half of scores fall above it and half below it: