Chapter 1 Flashcards
Group that receives the experimental treatment.
Experimental Condition
Value consisting of separate, indivisible categories, wherein no values can exist between two neighboring categories.
Discrete Variable
Measuring separate variables with the intent of simply describing the individual variables.
Descriptive Research
Manipulating one variable while another variable is observed and measured.
Experimental Method
Value that is used to create the different groups of scores.
Quasi-independent Variable
Group that receives no treatment or receives a neutral; placebo treatment.
Control Conditon
Value which is divisible into an infinite number of fractional parts.
Continuous Variable
Procedure used to summarize, organize, and simplify data.
Descriptive Statistic
Technique that allows one to make generalizations about the populations from which samples were selected.
Inferential Statistic
Value that describes a population usually derived from the measurements of the individuals in the population. Ex; average age
Parameters
A group of people.
Population
Set of individuals selected to represent the population in a research study.
Sample
Procedure for measuring external behavior wherein the resulting measurements measure a hypothetical construct.
Operational Definition
Single measurement or observation commonly called a score or raw score.
Datum
Boundary of intervals for scores that are represented on a continuous number line.
Real Limit
Boundary at the top of the interval.
Upper Real Limit (URL)
Boundary at the bottom of the interval.
Lower Real Limit (LRL)
Value that describes a sample, usually derived from measurements of the individuals in the sample.
Statistics
Measurements or observations.
Data
Collection of measurements or observations.
Data Set
Naturally occurring discrepancy between a sample statistic and the corresponding population parameter.
Sampling Error
Internal attribute that cannot be directly observed but is useful for describing and explaining behavior.
Construct
Set of ordered categories wherein a zero score indicates none of the variable being measured.
Ratio Scale
Value that is observed to assess the effect of treatment.
Dependent Variable
Score comparison method where the researcher does not control which participants go into which group.
Nonequivalent Groups Study
Set of ordered categories that are all intervals of exactly the same size.
Interval Scale
Set of categories that have different names.
Nominal Scale
Set of categories that are organized in an ordered sequence.
Ordinal Scale
Observing two different variables to determine whether there is a relationship between them.
Correlational Method
Value that is manipulated by the researcher.
Independent Variable
Characteristic or condition that changes or has different values for different individuals.
Variable
Method of using the passage of time to create the groups of scores.
Pre-Post Study
