4461343
Description
Flashcards by jmmckeithan, updated more than 1 year ago
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Created by jmmckeithan
about 8 years ago
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| Question | Answer |
| Ethical Principles for animal research | Research must have a clear , scientific purpose |
| Standard deviation | shows 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 (average ) Approx. 95% off all scores fall within two standrad deviations of the mean 99.7% |
| Normal Distribution | forms a bell shaped or symmetrical curve( upside down U) |
| Mode | the most frequently occuring score |
| Median | the middle score , score that divides a frequency distribution excatly in half |
| Mean | the average , sum of a set of scores divide by the number of scores |
| operational definitioins | statement of ypour procedures , identifies the iv & dv, sampling and assignment |
| Dependent variable | what is being measured in an experiment , the research variable that " depends" on the independent variable |
| 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 a group over an extended period of time |
| zero correlation | indicates there is no nrelationship between 2 variables |
| negative correlation | -1.00 closest to it , means 2 variables move in the opposite direction |
| positive correlation | +1.00 closest to it , mean 2 variables move in the same direction |
| correlation coefficient | a number value that indicates the strenghth and direction of the relationship between two variables |
| c | researhers observe or measure a relationship between variables |
| participants bias | tendency for research participants to respond in a certain way because they know they are being observed |
| researcher bias | tendency for researchers to look for evidence that supports their hypothesis and ignore contradictory evidence |
| surveys | descriptive method , uses questionnaries or interviews |
| skewed distribution | distrubition with most scores squeezed to one end , few scores stretch out like tail |
| Reliability | consistency or repeatability of results . |
| random selection | choosing of members of a population so that every individual has an equal chance of being chosen for a sample |
| random assignment | division of the sample in an experiment into groups so that every individual has an equal chance of being put in any group |
| quasi- experiment | measurment of dv ( dependent variable ) when random assignment to groups of a randomly selected sample is not possible |
| Quantitative Data | Information can be reported as numbers for ease of handling. |
| Placebo | distributed through population . Ex. sat |
| Normal Distribution | Represented by a normal curve ( upside down U shape ) symmetric with mean, mode , and median the same score |
| Naturalistic Observations | Observing and recording behavior in naturally occuring situations w/o trying to manipulate and conrol situation |
| Inferential statistics | statistics used to interpret data and draw conclusions |
| Hypothesis | Prediction of how 2 or more factors are likely to be related |
| Experimental group | group that you experimenting on receives the independent variables |
| Experiment | Research method that involves manipulation of an independent variable |
| Ethical guidlines for human research | 10 informed consent |
| Descriptive statistics | numbers that summarize a set of research data from a sample |
| Confounding variable | Factors that cause differences between the experimental group and the control group other than the independent variable |
| Central Tendency | Describes average of a distribution |
| Case studies | research technique in which one person is studied in depth in hope of revealing universal principles |
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