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research test 1 cont

QuestionAnswer
an orderly set of groups that do not overlap and organize the meaning of qualitative data categorization scheme
breaking down and labeling large amounts of textual data to identify te category in which it belongs coding
use of coding to cartegorize data data reduction
an abstract idea or concept that is implicit in and recurrent throughout qualitative data theme
a point in qualiitative data collection and analysis when all new info is redundant of already collected info data saturation
data that describes the characteristics of the people in the study demographics
information we need to understand the findings or make conclusion is missing incomplete information
information is presented in an unclear manner confusing information
aspects of interest in a study that differ variables
variables used to explain or predict independent variables
variables depend on other variables in the study they are what we wnant to predict or understand dependent variables
a definition that desctibes something conceptually (refering to variables) theoretical definition
a definition that describes something concretely, usually in terms of measurement (refering to variables) operational definition
every variable in a quantitative study must have____becuase every variable must be measured an operational definition
true score + error observed score
occurs each time the measurement is taken systematic error
in measurement occur randomly and may be due to personal factors, poor directions on questionaire, administration variations, anonyymity of the response situation random errors
unstructured interviews and field notes are examples of __methods qualitative
same questions, in the same order, and in the same manner are asked of all subjects by the interviewer structured interview
no specific set of questions are asked. Interviewer is free to ask questions to explore a topic with the respondent based on their responses to a previous question unstructured interview
some specific questions are asked but additional open-ended questions can also be asked by the interviewer semi-structured interview
used for obtaining data on characteristics of subjects. Info such as age, gender, race, education, religion demographic questions
asks repondents to complete questions in their own words. open-ended questions
responddents are sked to select a response from alternative responses listed close-ended questions
items that are relevant for some respondents and not others are called contingency questions
one criticism of self-report psychological measures is that persons may answer the items in a socially desirable manner rather than their true feelings projective techniques
process of selecting representative units of a population for study in a research investigation sampling
types of qualitative sampling convience, snowball, purposive
readily found participants, convenient for recruitment, no attempt to limit or control sample other than members of the population convient sample
built by using contacts from the first couple of participants to identify other members of the population snowball sample
the sample consists of participants who are intentionally selected from the population because they have certain characteristics that are related to the purpose of the study purposive sample
a statistical procedure to identify how many subjects will be needed in a study to achieve statistical significance, assuming the difference or relationship rested is present in the population power analysis
does not assure that everyonein the population of interest has an equal opportunity to be included in the study non-probability sampling
strategies that suure that every member of a population has an equal opportunity to be in the study probability sampling
non-probability samples convience, quota, matched
types of probability samples random, cluster, systematic
a sample in which all members of the population of interest are identified and in the sampling frame so that each member can be given an equal chance of being included in the sample random sample
the processof selecting subjects from the population in a manner that avoids any systemic influence and gives all members an equal chance of being included random selection
subjects selected at random using methods such as slips of paper or table of random numbers simple random sample
the entire population is divided into groups ased on an important characteristic; subjects are then randomly selected from each group stratified random sample
sampling in stages starting with froups in population then individuals in the group cluster sampling
what is a type 2 error not rejecting a null-hypothesis that is false
what is an underpowered study small sample size so you dont reject the Null
what is a type 1 error rejecting a Null hypothesis that is true
no relationship between the rows we are always trying to prove that it is true Null hypothesis
who originated evidence based practice cochrane
what does PICO stand for population, intervention, comparison, outcome
Created by: dnoyes
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