Final NEED TO STUDY Flashcards
Scale is…
a self-report and more precise way to measure phenomena than a questionnaire
rating scales?
crudest form, ordered series based on a continuum
likert scale?
original version had 5 categories. each response is assigned a number 0-1 given the most negative and 4-5 given the most positive response
visual analog scale (VAS)?
strength, intensity of subjects feelings, sensations or symptoms. Line 100mm with right angle stops on each end, horizontal or vertical line. Anchors at each end that include the extreme range of responses.
Systematic and random error examples?
Systematic:
1. a paper and pencil rating scale designed to measure hope may actually also be measuring perceived support
2. when measuring subjects weight, a scale that shows weight that are 2 lbs over the true weight
Random:
1. the person completing a paper and pencil may accidentally make the wrong column
2. the person entering the data into a computer may punch the wrong key.
Probability theory?
theory addressing statistical analysis from the perspective of the extent of a relationship or the probability of accurately predicting an event.
if probability is 0.23, then p = 0.23
there is a 23% probability that a particular event will occur
probability is usually expected to be p < 0.05 or p < 0.01
Decision theory?
theory based on assumptions associated with the theoretical normal curve
used in testing for differences between groups, with the expectation that all the groups are members of the same population
the expectation is expressed as a null hypothesis, and the level of significance (alpha) is often set at 0.05 before data collection
results from previous studies into single quantitative analysis
statistically pools
A method of research used when researchers have complex research questions and answers the questions by using a quantitative and qualitative methods in the same study.
mixed methods research
key questions to ask about mixed methods research design?
- were the 2 components of the study (eg. qual and quan)? are they implemented concurrently or sequentially?
- if sequential, which was implemented 1st?
- how did the researchers combined or interpret the findings of 1 component in light of the other?
___________ _____________ studies allow researchers to capitalize on the strengths of # and words to answer different components or stages of research questions
mixed methods
mixed method studies allow researchers to capitalize on the __________ of # and words to answer different _______________ or stages of a research question.
strength
components
studies must be carefully designed to assure congruence between the problem, purpose, questions, designs, data collection, and analysis, and interpretation of findings. integration of each component is needed
challenges
longer time commitment
resources
time to complete/complex, multidisciplinary team
funding
