Dichotomous variable - Study guides, Class notes & Summaries

Introduction to Statistics Latest Update Graded A+ Statistics A set of tools and techniques that is used for describing, organizing, and interpreting information or data Example of statistics Number of students in a particular curriculum speed of problem- solving, or average cost of dinner Purpose of statistics Making decisions with incomplete data Data A record of an observation or an event such as a test score, grade in a class, or response time, one! Data Set A collection...

What is a law? correct answers A principle that has never been successfully challenged. What is a theory? correct answers A theory is an understanding of how something works - a body of knowledge and explanatory concepts that seek to increase our understanding What are concepts? correct answers Mental representations of generalized abstractions What are some examples of concepts? correct answers It implies considerable evidence but not complete uniformity -There are competing theorie...

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...

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: d...

StatiSticS teSt #5 - chapterS 9 & 10, unit #4 - StatS teSt, (actuaL) - teSt #3 - StatS, pSych StatS quiz 5, pSych StatS quiz 4, pSyc StatS quiz 3, teSt 3 quiz - StatS, ch 5 q'S, ch 6 queStionS Using the attached SPSS output, what is the p-value that tests the null hypothesis that the relationship between eahtot and wrtot is zero? - correct answer-0-Correct answer-Using the attached SPSS output, what is the correlation between eahtot and itn? - correct answer-0.476-Correct answ...

NCE-Assessments and Testing Exam |Correctly Solved| VERIFIED! appraisal *Ans* professionally administered assessment tools and tests used to evaluate, measure, and understand clients behavioral observation *Ans* type of assessment used to document the behavior of clients or research subjects Bell Curve *Ans* illustration of data distrubution that resembles the shape of a bell Coefficient of determination *Ans* denoted by R^2, the proportion of the variance in the dependent variable t...

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 coefficient. It is interpreted as the amount of variance in one variable that is accounted ...

In __ we select elements because they are easy to sample. correct answers convenience sampling __ sampling is where we know the chance that each element will be included in the sample, which allows us to statistical inferences about the sample population correct answers probability Which of the following is a type of question used in survey research? correct answers open ended, dichotomous, and multiple choice are all correct A ___ is a list of all units in a population correct answers ...

R squared is the: 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, this indicates: a. low homoscedasticity b. low correlation coefficient c. low heteroscedasticity d. high heteroscedasticity - correct answer b. low correlation coefficient Heteroscedasticity - correct ...

dichotomous questions - ️️-clearly stated -easy to answer -easy to analyze -limited information voluntary response sampling - ️️samples in which participants self-select -frequently used by radio and television -over represent people with strong opinions Data - ️️Facts and figures from which conclusions can be drawn Data Set - ️️The data that are collected for a particular study Variable - ️️any characteristic of an element Quantitative Variables - ️️The possibl...