Module 7-8, Quantitative Methods Flashcards
Rachel is a social worker conducting a study on the eating
habits of adults experiencing depression. Which is an example of a directional hypothesis
An individual suffering from depression will consume
significantly more food than an individual who is not depressed.
In experimental studies, the independent variable:
Impacts the dependent variable
What is an example of a BC single-subject design?
Two different interventions in a subject design-
i.e. Marcus goes to an intervention for 6 weeks then tries a
completely new intervention for the next 7 weeks
Which choice below shows elements of a good research
hypothesis?
Relevant, complete, specific, potential for testing
External validity refers to:
The extent to which a causal relationship found in a study can be
generalized beyond the study conditions
What are the differences in steps for qualitative and quantitative research?
- Problem identification
- Question formulation
- Conducting research
● Designing the research study
● Collecting data
● Analyzing and interpreting the data - Presenting and disseminating the findings
What are the differences between single-subject and group designs?
Single-subject is used to improve a SINGLE unit (one client, family, organization, community)
Group designs use usually two groups to
address problems i.e. experimental designs
What are the legends in single-subject designs
A-baseline data
B-intervention
B1- variation of intervention
C/D/E- other interventions
What are single subject Exploratory research designs?
A design, B design, BB1 design, BC design
What are Descriptive research designs?
AB design, ABC and ABCD designs
What are Explanatory research designs?
multiple-baseline & reversal designs- testing baseline multiple times (ABA, ABAB, BAB, BCBC).
What is the posttest
Test after intervention
Cross-sectional survey?
No experiment done. A suvey for ONE Time
Longitudinal survey?
Long and multiple times
What is comparison group pretest-posttest?
two groups, comparing, pre- and post intervention
Randomized posttest only control group design
random participants selected
What is the difference between single subject, one group, and two group?
Single subject- one particular group in a point of time- i.e. 2021 Carleton group
One group- one larger group, could be overtime i.e. Carleton students over the years
Two group- two larger groups, i.e. Carleton and York
Why do you sometimes not collect baseline data?
Some research arenas or questions do not need baseline data- already known, sometimes not required to measure
What are the two types of data analysis?
Descriptive: ie. measures of central, tendency, measures of deviation
Inferential: levels of significant, measures of association- strength and direction of relationship,
Two types of sampling method?
Probability and non-probability
Data collection method?
- secondary analysis,
- observation
- survey
- experiments
Common research design characteristics for single-subject:
● More practice-oriented ● Unit of analysis: One individual or one client system ● Exploratory: A, B, BB1 ● Descriptive: AB, ABCD ● Explanatory: ABA, ABAB, BAB
Common research design characteristics for Group designs:
● Unit of analysis: One group or multiple groups (usually two)
● Explanatory: Experimental design
● Descriptive: Quasi-experimental
● Exploratory: Pre-experimental or nonexperimental
How are explanatory and descriptive group research designs different?
Explanatory: Experimental design.
Descriptive: Quasi-experimental
How are explanatory, exploratory and descriptive single-subject designs different?
Explanatory measure baselines at different times, whereas exploratory and descriptive only measure baseline data once
