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;
10 Cards in this Set
- Front
- Back
|
Blind experiment |
An experiment in which the subjects do not know whether they are members of the experimental group or the control group. In a double blind experiment neither the subjects nor the researchers know to which group the members belong until the end of the experiment. |
|
|
Case studies |
Studies of individuals. In clinical settings researchers can study treatments and their apparent effects. To prove a treatment effect a case control ( an untreated similar subject) must be simultaneously observed. |
|
|
Control group |
A group of individuals that are similar in all possible respects to tbe group being treated who receive the placebo . also called 'control subjects' (see also experimental group and intervention studies) |
|
|
Correlation |
The simultaneous change of two factors such as increasing weight and height ( a direct or positive correlation) or decrease in cancer with an increase of fiber intake( an inverse or negative correlation) A correlation b/t two factors suggest 1 may cause tbe other but but doesnt rule out possibility of chance or a third factor. |
|
|
Epidemiological studies |
Studies of populations: often used in nutrition to search for correlations between dietary habits and disease incidence; a first step in seeking nutrition related causes of diseases. |
|
|
Experimental group |
The people or animals participating in an experiment who receive the treatment inder investigation. Also called experimental subjects. ( See also control group and intervention studies) |
|
|
Intervention studies |
Studies of population in which observation is accompanied by experimental manipulation of some population members. For example a study where half (experimental subjects) follow diet advice and the other half (control) do not. Both groups results are monitored. |
|
|
Labratory studies |
Studies that are performed under tightly controlled conditions and are designed to pinpoint causes and effects. Often animals are used as subjects here. |
|
|
Placebo |
A sham treatment often used in scientific studies, an inert harmless medication. The placebbo affect is a healing effect that the act of treatment rather than the treatment itself often has. |
|
|
Randomized controlled trials |
Sometimes reffered to as clinical trials. Studies in which the subjects are selected in such a way that they have an equal chance of being included in the experimental/treatment group or the control group. This type of study is the gold standard in research. |
