Statistics Quiz # 7

A factor where the same group of participants is measured on the dependent variable at every level of the independent variable is known as_____

Between Subjects Variable

Between Groups Variable

Within Subjects Variable

Within Groups Variable

Split-plot ANOVA is a _____ factor ANOVA.

One

Two

Three

Four

Chi Square Test involves the assessment of one or more independent variables, each with two or more levels containing the frequency of_____data.

Dichotomous

Multinomous

Nominal/categorical data

All of these

Goodness-of-Fit Test is Karl Pearson’s original name for the_____ statistic.

Cramer’s V

Chi Square

T test

ANOVA

Nonparametric statistics refers to a variety of statistical tests that make assumptions about the shape of the underlying population distribution.

True

False

Choose the correct statement about the Test of the Standardized Residuals.

It is a post hoc analysis in chi-square

It is analogous to multiple comparison tests in ANOVA

It determines which cells make substantial contributions to the overall significance of the chi-square test

All are correct

The reduction in risk outcomes between two differently treated groups is known as_____

Potential risk reduction

Absolute risk reduction

Partial risk reduction

None of these

Age-specific Death Rate is the number of deaths in a given age range divided by the total population of that age range at _____

End of year

Start of year

Midyear

Any time of the year

Analysis of Covariance is a method of determining differences among means, on a single dependent variable, while statistically adjusting for the effects of a Confounding variable

Nuisance variable

Independent variable

Both a and b

Annual Crude Death Rate is the number of deaths in a year divided by the population as of midyear of that same year.

True

False

In canonical correlation, one set of variable is specified as criterion set and the other as_____

Bivariate set

Categorical set

Predictor set

None of these

Case Fatality Proportion is the number of deaths attributable to a particular disease during a period of time divided by the_____ at the same time.

Severity of the disease

Prevalence proportion of the disease

Incidence of the disease

All of these

The quotient of Case Fatality Proportion is reported as an interpretable multiple such as_____

10

100

1000

10000

Cluster Analysis is a technique that allows classification of a large set of objects into distinct subgroups based on_____ variables.

Criterion

Predictor

Bivariate

Categorical

Equivocal Results are the test outcomes that are

Unclear

Uncertain

Unreadable

All of these

Factor Analysis can be used to reduce a set of variables by identifying_____items.

Necessary

Redundant

Crucial

All of these

The condition where a test does not indicate the presence of a disease and the patient really does not have the disease.

True

False

The condition where a test indicates the presence of a disease and the patient really does not have the disease is known as_____

True positive

False positive

True negative

False negative

Iatrogenic Effect is a condition that arises when the diagnosis of a disease or condition, or the treatment of a disease or condition, is_____

Unknown

Beneficial

Harmful

Any of these

Incidence is the number of verified new cases of a disease during a period of time divided by the _____ in the population.

Total number of people

Total number of cases

Prevalence proportion of disease

Severity of disease

Intermediate results is a condition when a test’s outcome does not fall between these positive or negative conditions.

True

False

Likelihood Ratio for a Positive Test expresses the likelihood that the test will be positive in a person with the disease compared with a positive test in a person_____

With same disease

Recovering from disease

Without disease

All of these

Multiple Regression is a technique that allows a single dependent variable to be predicted from several independent variables.

True

False

Linear Discriminant Function Analysis is a multivariate statistical technique that uses a set of predictor or independent variables to predict group membership on a _____ variable.

Dichotomous criterion

Monochotomous criterion

Both

None

Multivariate Analysis of Covariance is a technique that analyzes the effects of _____

One or more independent variables on more than one dependent variable

One or more dependent variables on more than one independent variable

One or more covariates alongwith one or more independent variables

None of these

Multivariate Statistics is a family of different statistical designs and procedures involving the analysis of more than one _____ variable at the same time.

Dependent

Independent

Confounding

Both a and b

The use of Multivariate Analysis of Variance has declined because_____

Does not control for the Type I error

Its use with a large group of independent variables may obscure true significant relationships

It has the power to detect whether groups differ along multiple dimensions

Both a and b

The number of people who have a specified disease at a given point in time divided by the total number of people in the population is known as_____

Incidence

Prevalence

Occurrence

None of these

Prevalence Proportion is the total number of_____ of a disease known to exist at a given point in time divided by the total population at the same time.

Cases

Unverified new cases

Old cases

Both a and b

Receiver Operating Curve is a graphical representation of a signal detection theory where the_____ of tests can be visually analyzed.

Sensitivity

Specificity

Veracity

Both a and b