UNL PSYCH 350 EXAM 2 QUESTIONS & ANSWERS
________ are measures/behaviors where all participants have the same variable,
________ are when they have two different variables - answer -constants, variables
________ variables indicate different kinds, ________ indicate different amounts -
answer -qualitative, quantitative
________ statistics involve summaries of single variables, ________ statistics
summarize the relationship between two variables - answer -univariate, bivariate
The ________ measures the spread of scores around the mean, the ________
measures the extent of asymmetry of the distribution - answer -standard deviation,
skewness
The ________ estimates the variability of scores around the population mean, the
________ estimates the variability of repeated estimates of population mean around the
population mean - answer -standard deviation, standard error of the mean
Accuracy with which sample means represent the population mean is estimated by the
________, which is calculated from the ________ and the sample size - answer -
standard error of the mean, standard deviation
A type ________ error or a ________ is a statistical decision error made when you
mistakenly decide the variables are related in the target population, when you
mistakenly conclude the variables aren't related in the target population the type of
statistical error is called a type ________ error or a ________, when you correctly
conclude the variables are related in the target population but get the direction or
pattern of that relationship wrong the type of statistical error is called a type ________
error or a ________. - answer -i, false alarm, ii, miss, iii, misspecification
Type ________and type ________errors may be the result of poor sampling, poor
measurement or sampling variability, type ________errors may be the result of these
things and/or having a too-small sample. - answer -i, iii, ii
If the h0: is true in the population and p less than .05 will lead you to make a type
_______ error or a _______, and a p> .05 will lead you to make a _______. - answer -i,
false alarm, correct retention
If the h0: is false in the population a p less than .05 this will lead you to make a
_______, and a p greater than .05 will lead you to make a type _______ error (which is
also called a _______). - answer -correct rejection, ii, miss
________ are measures/behaviors where all participants have the same variable,
________ are when they have two different variables - answer -constants, variables
________ variables indicate different kinds, ________ indicate different amounts -
answer -qualitative, quantitative
________ statistics involve summaries of single variables, ________ statistics
summarize the relationship between two variables - answer -univariate, bivariate
The ________ measures the spread of scores around the mean, the ________
measures the extent of asymmetry of the distribution - answer -standard deviation,
skewness
The ________ estimates the variability of scores around the population mean, the
________ estimates the variability of repeated estimates of population mean around the
population mean - answer -standard deviation, standard error of the mean
Accuracy with which sample means represent the population mean is estimated by the
________, which is calculated from the ________ and the sample size - answer -
standard error of the mean, standard deviation
A type ________ error or a ________ is a statistical decision error made when you
mistakenly decide the variables are related in the target population, when you
mistakenly conclude the variables aren't related in the target population the type of
statistical error is called a type ________ error or a ________, when you correctly
conclude the variables are related in the target population but get the direction or
pattern of that relationship wrong the type of statistical error is called a type ________
error or a ________. - answer -i, false alarm, ii, miss, iii, misspecification
Type ________and type ________errors may be the result of poor sampling, poor
measurement or sampling variability, type ________errors may be the result of these
things and/or having a too-small sample. - answer -i, iii, ii
If the h0: is true in the population and p less than .05 will lead you to make a type
_______ error or a _______, and a p> .05 will lead you to make a _______. - answer -i,
false alarm, correct retention
If the h0: is false in the population a p less than .05 this will lead you to make a
_______, and a p greater than .05 will lead you to make a type _______ error (which is
also called a _______). - answer -correct rejection, ii, miss
