Terms : Hide Images
| 239938059 | undercoverage | when some groups in the population are left out of the process of choosing a sample | |
| 239938060 | nonresponse | an individual chosen for the sample cannot/will not respond | |
| 239938061 | response bias | answers to survey questions altered because of the behavior of the interviewer or respondent. | |
| 239938062 | subject | name for a human involved in a study | |
| 239938063 | parameter | numerical data from a population | |
| 239938064 | block design | dividing subjects into male and female groups before randomizing is an | |
| 239938065 | randomization | the use of impersonal chance to assign experimental units to treatments | |
| 239938066 | anecdotal evidence | evidence based on arbitrarily chosen data - stands out because it is striking in some way - no basis for generalization | |
| 239938067 | matched pairs design | use of identical twins (1 treatment, 1 control) is an example of this | |
| 239938068 | statistic | numerical data from a sample | |
| 239938069 | observational study | does not attempt to influence responses in subjects;no treatment imposed | |
| 239938070 | available data | already-existing data produced in the past that may help answer a present question | |
| 239938071 | sample | a fraction of a population chosen for study | |
| 239938072 | simple random sample | consists of n individuals from the population chosen in such a way that every set of n individuals has an equal chance to be the sampl selectede | |
| 239938073 | lurking variable | accounted for in experimental design by use of control group | |
| 239938074 | single-blind | subjects do not know which treatment they are receiving | |
| 239938075 | control group | necessary component to a comparative experiment, this group often receives a placebo | |
| 239938076 | voluntary response sample | consists of people who choose themselves to be in a survey | |
| 239938077 | population | the entire group to be studied | |
| 239938078 | lack of realism | the reason most often cited for discounting lab rat research | |
| 239938079 | experiment | treatment is deliberately imposed on individuals in order to observe responses | |
| 239938080 | confounding variables | two or more variables whose effect on the response cannot be determined | |
| 239938081 | bias | systematic design of an experiment that favors a certain outcome | |
| 239938082 | statistically significant | an observed effect so large that iwould rarely occur by chance | |
| 239938083 | Design | the arrangement of pattern for producing data | |
| 239938084 | census | an attempt to measure every member of a population | |
| 239938085 | double-blind | neither the subjects nor those observing know which subject received which treatment | |
| 239938086 | unit | name for anything but a human in a study |
