Practice evaluations are the systematic ways of evaluating the effectives of social program. It involves using applied social research to find the extent to which social programs are carried out effectively and efficiently. Practice of work can be evaluated by the application of quantitative or qualitative research methods in order to answer questions about the social work practice. Social workers engage in research for two primary reasons. The first reason is to evaluate their own practice: interventions and programs. Social workers have a responsibility to provide high quality of care to their clients. The second reason social workers engage in research is to add to the body of knowledge in the field. Knowledge gained from the research …show more content…
The whole purpose of using correlations in research is to figure out which variables are connected.
• Descriptive research is conducted primarily to collect data about variables rather than to test hypotheses about the relationships between variables. In another word a descriptive study is conducted to describe ‘how things are’.
The Basic Elements of Researches are as follows:
• Variables and Constants
A variable is any character, behavior, event that is capable of varying or exiting in at least two different states, conditions or levels. Examples are gender, anxiety (high, low), and therapy (cognitive, client centered). Whereas a constant is when a character restricts to a single state or condition.
• Independent and dependent variables
A variable is an independent variable when it is believed to affect or alter status on another variable. The independent variable is referred to as treatment or intervention and is symbolized with letter X. Conversely, a variable is a dependent variable when status on the variable seems to depend on stats on another variable. The dependent variable is considered as the outcome of treatment and is symbolized with the letter Y.
• Samples and sampling
A research design should clarify the population of interest and the method that will be used to select a sample. The best way to make sure that a sample is representative of the population is to use one of the following techniques.
Describe what you understand by ‘independent variable’ and ‘dependent variable’ in a scientific study? ( 5 points) An independent variable is something you have control over, what you can choose and manipulate. It is a variable that stands alone and doesn’t change by other variables. Although in some cases, you may not be able to manipulate the independent variable. It could be already there and or fixed. A dependent variable is the variable that’s being tested in an experiment. If the experimenter changes the independent variable, the change in the dependent variable is observed and recorded. For example a scientist is testing the effect of light and dark on the behavior of moths by turning a light on and off. The independent variable is the amount of light and the moth’s reaction is dependent variable. A change in the independent variable (amount of light) directly causes a change in the dependent variable (moth
There are several parts to the experiment such as both the independent and dependent variables. The independent variable is controlled or changed during the experiment to test the effects on the dependent variable. The dependent variable is tested and measured during the test .A controlled variable is an example for an independent variable would be variable that is held constant throughout the experiment. An example is a theory that could extend a person’s life expectancy. The independent variable is the amount of vitamin given to the subject within the experiment. The dependent variable is the life span
The independent variable for the experiment was the paper towels. The dependent variable was the absorbency and strength. The constants for the experiment were the size of the paper towels that were used, the amount of water, the size of the beaker, the size of the cylinder and the amount of the weight.
d. Controlled experiment: an experiment in which only one variable is changed at a time
Independent: The independent variable in the following experiment is the temperature as it is what is being changed and will impact the overall outcome of the experiment.
Research questions are formulated in a study to inquire about variables, both independent and dependent variables, and the relationship between them. Research questions are categorized into two, that is, qualitative and quantitative research questions. Qualitative questions are used in qualitative research like case studies, surveys and action research where the approach is non-numerical and analyses special phenomena that occur in nature. Quantitative research on the other hand is more of a systematic approach with measurable numerical quantities that go through analysis to prove a hypothesis. Finally, the research hypothesis is either approved or disapproved with regards to the results of the analysis (Laureate Online Education B.V.
3) This is also a correlation approach because there is no actual manipulation of the variables.
The reaction time (in seconds) is the dependent variable of this experiment. This will be changed by the temperature of the chemicals, and as it is affected by the independent variable it is considered the dependent variable.
Dependent variables are ones that change due to the independent variable. Independent variables are variables that can be manipulated or measured. This influences the dependent variables.
This factor was the independent variable; it was controlled by you, the experimenter. The other variable was a consequence of changes you made. This is the dependent variable. It was a consequence of changes in the independent variable.
Independent variableIdentify the independent variable (IV), which is the variable that you hypothesize will cause or influence the other variable. *
2A. To manipulate a variable is to be able to change it, the dependent variable.
2. A variable is a business intelligence characteristic that stands for a value that cannot change over time.
The research question, in this case, is “Are subjects less accurate in their hypnotic response reporting under more anonymous conditions” (Younger et al., 2005). Independent variables are the variables that stand alone, and it is not changed by the other variables one is measuring. On the other hand, dependent variable refers to the variable that changes because of variations in the independent variable. Therefore, the independent variable is less accurate subjects and anonymous conditions while the dependent variable is the hypotonic response reporting.
A variable is referred to as any event, situation, behavior, or individual characteristic that changes or varies. Any variable