Wednesday, February 12, 2014

Experimental Research

Experimental Research: Explores cause and effect relationships

ExperimentationIndependent Variable: Experimental factor that is being manipulated

Dependent Variable: Variable that may change in resoinse to manipulation

Experimental and Control Groups

Experimental Group: The condition of an experiment that explores participants to the treatment

Control Group: The condition of the experiment that serves as a comparison for evaluating the effect of the treatment

Experimental Method

Blind Study: Subjects are unaware if assigned to experimental or control group

Double-blind Study: Neither subjects nor experimenters know which group is control or experimental

                   DESCRIPTIVE STATISTICS V. INFERENTIAL STATISTICS

Descriptive Statistics: describe the results of research

Inferential Statistics: are used to make an inference or draw a conclusion beyond the raw data

Measures of Central TendencyCentral tendency - where does the center of the data tend to be?

Mode: The most frequently occuring score in a distribution

Mean: Average if scores in distribution

Median: Middle score in a rank-ordered distribution

Range: Difference between the highest and lowest scores in distribution

Measures of Variation

Standard Deviation: A computed measure of how much scores vary around the mean



No comments:

Post a Comment