Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
Threats to internal validity:
SUBJECT EFFECTS |
Changes in behavior in response to being a subject or to being in an experiment
|
|
Threats to internal validity:
INSTRUMENTATION |
differences in results due to unreliability, changes in the measuring instruments or in observers
|
|
Threats to internal validity:
TREATMENT REPLICATIONS |
Number of replications of the treatment is different from the number of subjects
|
|
Threats to internal validity:
SUBJECT ATTRITION |
Occurs because of systematic loss of subjects
|
|
Threats to internal validity:
MATURATION |
Occurs when an effect is due to maturational or other natural changes in the subjects (being older, wiser, stronger, tired)
|
|
Threats to internal validity:
DIFFUSION OF TREATMENT |
Occurs when subjects in one group learn aout treatments or conditions from different groups
|
|
Threats to external validity:
POPULATION EXTERNAL VALIDITY |
The extent to which the results can be generalized to other people
|
|
Threats to internal validity:
STATISTICAL CONCLUSION |
Violation of assumptions or misuse of statistical tests
|
|
Threats to external validity:
ECOLOGICAL EXTERNAL VALIDITY |
Refers to the conditions of the research and the extent to which generalizing the results is limited to similar conditions
|
|
Threats to Internal validity:
PRETESTING |
Occurs when the act of taking a test or responding to a questionnaire prior to the treatment affects the subjects
|
|
Therats to external validity:
CONSTRUCT VALIDITY |
Refers to the adequacy with which we understand and communicate the complexity of the so-called treatment package, particulary the components of it that will allow the observed effect to be replicated as another test of the underlying construct
|
|
Threats to internal validity:
STATISTICAL REGRESSION |
Scores of groups of subjects taking on values closer to the mean due to respondents being identified on the basis of extremely high or low scores
|
|
Nonexperimental research design:
DESCRIPTIVE RESEARCH |
1. Current or past status.
2. Describes achievement, attitudes, behavior or other characteristics of a group. |
|
Nonexperimental research design:
COMPARATIVE RESEARCH |
1. Examines differences between 2 or more groups on a variable.
2. Makes a comparison based on descriptive data. |
|
Nonexperimental resarch design
CORRELATIONAL RESEARCH: BIVARAITE (ZERO ORDER) |
1. 2 variables are correlated
2. 2 variables from each subject are used and then use pairs of scores to calculate a correlational coefficient |
|
Threats to internal validity:
HISTORY |
Unplanned or extraneous events that occur during research and affect the results
|
|
Nonexperimental research design:
CORRELATIONAL RESEARCH: PREDICTION STUDIES |
1. Provide a more accurate estimation of prediction.
2. Contains a predictor variable and a criterion variable. |
|
Nonexperimantel research design:
SURVEY RESEARCH (#1) |
1. Investigator selects a sample of respondents and administers a questionnaire or conducts interviews to collect information on variables.
|
|
Nonexperimental research design:
SURVEY RESEARCH (#2) |
2. Describe the incidence, frequency, and distribution of the characteristics of an identified population.
|
|
Nonexperimental research design:
EX POST FACTO RESEARCH |
1. Identifies conditions that have alreadt occured.
2. Causal-comparative design without manipulation od the independent variable. |
|
Threats to internal validity:
EXPERIMENTER EFFECTS |
Deliberate or unintended effects of the researcher on subject responses
|
|
Threats to internal validity:
SELECTION |
differences between the subjects in the groups that may result in outcomes that are different because of group composition
|