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Psychological Statistics Chapter 1, Exams of Statistics

A.T. Still University of Health Sciences (ATSU)Statistics

Psychological Statistics Chapter 1

Typology: Exams

2023/2024

Available from 04/01/2024

DrShirley
DrShirley 🇺🇸

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Psychological Statistics Chapter 1
statistics -
a set of mathematical procedures for organizing, summarizing, and interpreting data
population -
the set of all the individuals of interest in a particular study
sample -
a set of individuals selected from a population intended to represent the population in a
research study
variable -
a characteristic or condition that changes or has different values for different individuals
data -
measurements or observations
data set -
a collection of measurements or observations
datum -
a single measurement or observation
parameter -
a value that describes a population
statistic -
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Psychological Statistics Chapter 1

statistics - a set of mathematical procedures for organizing, summarizing, and interpreting data population - the set of all the individuals of interest in a particular study sample - a set of individuals selected from a population intended to represent the population in a research study variable - a characteristic or condition that changes or has different values for different individuals data - measurements or observations data set - a collection of measurements or observations datum - a single measurement or observation parameter - a value that describes a population statistic -

a value that describes a sample descriptive statistics - statistical procedures used to summarize, organize, and simplify data inferential statistics - statistical procedures used to study samples and make generalizations about the populations from which they were selected sampling error - a naturally occurring discrepancy that exists between a sample statistic and the corresponding population parameter correlational - statistical method in which two different variables are observed to determine whether there is relationship between them random assignment - a method of assigning participants to groups that gives participants an equal chance of being assigned to each of the treatment condtions matching - a method of assigning participants to groups that ensures equivalent groups or environments for all treatment groups experimental - a statistical method in which one variable is manipulated while another variable is observed and measured in order to determine if there is a cause-and-effect relationship independent - variable that is manipulated by the researcher

nominal - measurement scale that involves classifying individuals into categories that have different names but are not related in any systematic way ordinal - measurement that involves classifying individuals into categories that have different names that are in an ordered, non-numerical sequence interval - measurement scale that consists of numerical, ordered categories where the zero point on the scale is arbitrary/doesn't represent a "zero amount" ratio - measurement scale that consists of numerical, ordered categories where the zero point on the scale represents an absolute zero