Dichotomous variables - Samenvattingen, Aantekeningen en Examens

cross-tabulation - answer-method of presenting and analyzing data involving 2 or more variables to discover data relationships dependent variable - answer-outcome/what you measure (y-axis) experiments - answer-involves obtaining data by manipulating factors under tightly controlled conditions to test cause and effect; marketing experiments include the independent variable or drivers (marketing mix elements: product features, price or promotion) and dependent variable (change in the purchas...

BUSI 820 Quantitative Analysis; DESCRIPTIVE STATISTICS, ORDINAL SCALE AND DICHOTOMOUS VARIABLE 2024 with complete solution; Liberty University Descriptive Statistics, Ordinal Scale and Dichotomous Variable 3 4.1. (a) Compute skewness for variables with five or more ordered levels 4 4.1. (b) Describe the results 4 4.1. (c) Which variables in the dataset are approximately normally distributed/scale? 5 4.1. (d) Which ones are ordered but not normal? 6 4.2. (a) Do a stem-and-leaf plot for th...

EPPP Questions Research and Statistics with Complete Solutions R squared is the: a. coefficient of multiple determination b. coefficient of stability c. coefficient of internal consistency d. silver character on "Star Wars" a. coefficient of multiple determination When data points are widely scattered around a regression line, this indicates: a. low homoscedasticity b. low correlation coefficient c. low heteroscedasticity d. high heteroscedasticity b. low correlation coeffic...

Levels of Measurement: Nominal Correct Answer-NAMES, LABELS, CATEGORIES Cannot be arranged in an ordering scheme (i.e., low to high) (e.g., eye colors) Nominal measurement can be categorical: dichotomous Correct Answer-two options i.e. yes or no ex: do they have gestational diabetes? yes or no? Nominal measurement: categorical Correct Answer-more than 1 category ex: looking at gestational diabetes, type 1, type 2 True or false: nominal measurement must be mutually exclusive Correct ...

Descriptive Statistics correct answers describe the properties of samples (or populations when they are completely known) Inferential Statistics correct answers draw conclusions/make inferences about the properties of populations from sample data variable correct answers -something that varies -condition or characteristic that can have different values nominal variable correct answers categorical -classifies/identifies objects Q: which restaurants do you prefer? DICHOTOMOUS: 2 level...

Bivariate regression is one predictor and one outcome, and multiple regression is one outcome with multiple predictors correct answers What is the difference between Bivariate and multiple regression? Tells us that residuals are normal and most likely centered around 0. correct answers in regression what does normality tell us? ÿ is the mean. Y' is the predicted value of Y Y is the outcome variable correct answers What is ÿ, Y' and Y? margin of error is how often we are wron...

Multiple Regression correct answers An extension of correlation and bivariate regression. Enables us to predict scores on a DV from a SET of IVs (ie, more than one predictor, IV). What a multiple regression produces correct answers It produces an equation that best predicts the Y or dependent variable (criterion variable) from several independent variables (predictor variables). Uses of a Regression Analysis correct answers It is used to evaluate how a DV is related to several other IVs. Y...

ILE 2 Final Exam Study Guide with 100% Correct Answers | Verified | Latest Update 2024 Dependent Variable - Outcome Variable Independent Variable - The risk factors & Confounders; predictors or explanatory Correlation Coefficient (r) - A measure of the linear relationship between 2 numerical measurements made on the same set of subjects (ranges from -1 to +1 with 0 indicating no relationship) AKA Pearson product Moment coefficient of determination (r^2) - The square of the correlation coe...

EPPP Questions Research and Statistics Graded A+ R squared is known as: Answer Choices: - a. coefficient of multiple determination - b. coefficient of stability - c. coefficient of internal consistency - d. silver character on "Star Wars" Correct Answer: a. coefficient of multiple determination --- When data points are widely scattered around a regression line, it indicates: Answer Choices: - a. low homoscedasticity - b. low correlation coefficient - c. low heteroscedasticity - d. hi...

What is a continuous variable? CORRECT ANSWER-an infinite number of values are possible Two types of continuous variables? CORRECT ANSWER-interval (change in units is consistent) and ratio (similar to interval, except have an absolute zero) What is a discrete variable? 2 types CORRECT ANSWER-dichotomous or categorical Nominal variable? CORRECT ANSWER-discrete variables classified into groups with no particular order (sex and mortality) Ordinal variable? CORRECT ANSWER-discrete va...

NCE Questions with complete solution 2024 appraisal - correct answer professionally administered assessment tools and tests used to evaluate, measure, and understand clients behavioral observation - correct answer type of assessment used to document the behavior of clients or research subjects Bell Curve - correct answer illustration of data distrubution that resembles the shape of a bell Coefficient of determination - correct answer denoted by R^2, the proportion of...