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| Question | Answer |
| Ethical Principles for Animal Research | 1) Research must have a clear, scientific purpose. 2)Provide humane living conditions for animals. 3)legally obtain animals 4)Least amount of suffering |
| Standard deviation | Show how far scores vary from the mean (average) score. |
| 68-95-99.7 rule | Means 68% of all scores fall within one standard deviation of the mean. |
| Normal distribution | Forms a bell-shaped or symmetrical curve. |
| Mode | ost frequently occurring score |
| Median | the middle score |
| mean | the average |
| Operational Definitions | statement of your procedures |
| Dependent Variable | What is being measured in the expiriment |
| Random assignment | Assigning participants to experimental and control groups by chance |
| Cross-sectional Study | Compares individuals at various ages at one point in time |
| :Longitudinal Study | studies a single individual or group over an extended amount of time. |
| Zero correlation | indicates there is NO relationship between 2 variables |
| Negative correlation | -1.00 means 2 variables mppve in opposite directions |
| Positive correlation | +1.00 means 2 variables move in the same direction |
| Correlation coefficient | a number value that indicates the strength and direction of the relationship between two variables |
| Correlation studies | researchers observe or measure a relationship between two variables |
| Participant bias | tendency for participants to respond a certain way because they know they are being observed |
| Researcher bias | tendency for researchers to look for evidence to support their hypothisis and ignore contradictory evidence |
| Skewed distribution | Distribution with most scores squeezed to one end, few scores stretched out like a tail |
| Reliability | consistency and reliability of results |
| Quasi-experimentative data | information can be reported as numbers for ease of handling |
| Population | all of the individuals in the group to which the study applies |
| Placebo | Physical or psychological treatmwnt given to the control group that resembles the treatment given to the experimental group |
| Normal distribution | Represented by a normal curve |
| Naturalistic Observations | Observing behavior in naturally occurion situations without interfering |
| inferential statistics | statistics used to interpret data and draw conclusions |
| Hypothesis | predictions of how factors are likely to be related |
| Experimental group | The group youre experimenting on |
| Experiment | research method that involves manipulation of variables |
| ethical guidelines for human research | 1)informed consent 2)voluntary participation 3)debriefing 4)confidentiality |
| descriptive statistics | numbers that summarize a set of research data from a sample |
| Confounding variables | factors that cause differences between the experimental and control group |
| Central tendency | describes average of distribution . |
| Case study | research technique in which one person is studied in depth in hope of revealing universal principles. |
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