aice psych cards

experiments

an investigation that manipulates an IV to see if it produces change in DV. Establishes casual relationships between variable

independent variable

The factor that researchers manipulate in an experiment

dependent variable

the factor researchers measure in an experiment

uncontrolled/extraneous variables

A variable that is not part of a research study but can influence the results of the study if its effects are not limited or eliminated

experimental condition

the situations in an experiment that represent different levels of the IV

control condition

participants do not receive any experimental manipulation. It serves as a comparison group

experimental/research design

A structured plan for conducting a research study and assigning participants to a group in a experiment

independent measures design

participants are randomly assigned to groups and each group completed one level of IV

repeated measures design

All participants in a study complete all levels of IV/ all experimental conditions in the study

matched pairs design

participants are paired based on characteristics relevant to the study. One member of each pair is randomly assigned to control or experimental conditions

ecological validity

the degree to which findings in a study can be generalized in a real world, natural setting.

validity

The degree to which a measure of research study investigates what it claims to be investigating

reliability

the consistency of a measure, procedure, or set of research results over time

demand characteristics

features of an experiment that might give away the purpose or aim of the study. Participants try to figure out what the study is about.

88

What was the accuracy rate for the 5 minute estimate

78

what was the accuracy rate for the 15 minute estimate

93

what percentage of participants said they didn’t dream in NON-REM

79.6

What percentage of participants said they dreamed in REM

volunteer sampling

What was the type of sampling did they use