Deck 1 Flashcards
Confounding/extraneous variable
Variable you aren’t measuring but has an effect
Anectodal evidence
MORE PERSONAL DATA data collected about someone’s experience- casual observation vs scientific
Case study
In-depth exploration of an individual/group over time
Constant
Feature/quality that doesn’t change
Construct validity
how well a test measures what it was designed to measure
Control group
Group that does not receive intervention of interest in a study
-variable isnt being tested
Aka comparison group
Correlation
Strength of a relationship between variables
Correlation coefficient
Number between -1.00 and 1.00 that indicates the degree of corellation between two variables.
-1.00 = strong negative correlation
0 = no correlation
1.00 = strong positive correlation
Dependent variable
Variable measured in an experiment
Descriptive statistics
Mean, median, mode, and standard deviation as well as qualitative
Double blind study
Study where the participants and researcher do not know which group each participant has been assigned to
Empiricism
knowledge should come from what can be objectively known (facts/evidence) from the world
Experiment
Test to measure the effect of one variable on another
Experimental group
Group of participants that receive the intervention of interest
Experimenter bias
Intentional or unintentional actions made by the researcher to promote desired results
Frequency distribution
Figure plotting values of a variable on x axis and the frequency of those values on the y axis
Hypothesis
Testable statement guided by theories. Makes a prediction about relationship between two variables
Independent variable
Variable manipulated in an experiment
Levels of analysis
Different perspectives emphasize different aspects of a research question
Inferential statistics
Stats where the results are used to make an inference about the entire population
Interview
Can be formal or semi-formal, researcher asks participants questions
Measure of central tendency
Descriptive stat.
Summarizes data set into a single value that represents the entire distribution
Frequency distribution, mean, median, and mode
Mean
Average value in a data set
-add all then divide
Median
Center value of a data set arranged numerically
