Research Methods I
The hypothesis that the research is trying to prove?
The alternative or research hypothesis
What are the ways to conduct surveys?
What is the difference between an experiment and a quasi-experiment?
In an experiment the participants are selected randomly.
The prediction that there will be no statistically significant difference between the independent and dependent variables.
The null hypothesis
The score that appears most frequently in a list of scores
The mode
What are the data collection methods used in descriptive or exploratory research?
Surveys, secondary data analysis or pilot studies
Assessing how well a study was designed, conducted and interpreted.
internal validity
What is the treatment (intervention) group?
A group of participants to whom an intervention is delivered and whose outcome measures are compared with those of a control group.
Consists of eligible members of the population-based upon the inclusion criteria of the study
What is study target population
The total of the scores divided by the number of scores.
the mean
What is the purpose of Descriptive Research?
To observe, describe and document a concept or phenomenon.
What are two main types of sampling?
Nonprobability sampling and probability sampling
What is confidentiality in research?
Confidentiality is when the research results do not identify any particular individual or group.
Median, mean and mode are?
the measures of central tendency
Items are listed in order. This is an example of what type of measurement?
Ordinal level of measurement
What do correlational studies measure?
The relationship between variables
What do we mean when we talk about external validity?
the degree to which the treatment effect can be generalized across populations, settings, treatment variables, and measurement instruments.
This method draws on both quantitative and qualitative methods of studies.
Mixed methods research
What is an attribute or characteristic of individuals or a concept that researchers study?
A variable
What is it when the researcher selects a subgroup from the target population.
A sample
A researcher wants to know the student preferences for graduation. What type of research is recommended and what type of data collection methods would be appropriate?
A descriptive design using a survey
What are the two types of participants in an experiment?
Those in the control group and those in the experimental (intervention) group.
When an instrument actually measures what it sets out to measure, this is called?
Validity
A declarative statement in which an investigator makes a prediction about the outcomes of a relationship
A hypothesis
The sampling where the population is first divided into different subgroups or strata and a separate random sample is selected from each stratum.
Stratified random sampling