Research

Question 1

RCT

Answer 1

Random assignments to intervention or control. Generally not used in social work b/c unethical for control

Question 2

Quasi-Experimental Design

Answer 2

Void of randomization of either subjects or treatment and/or the lack of comparison groups. Still an attempt to isolate the tx. E.g., does tx have an impact

Question 3

Single Subject Design

Answer 3

Subject serves as own control rather than using another individual or group.

Question 4

Retrospective Design

Answer 4

Asked to look back and remember what like at earlier time point

Question 5

Cross-sectional Design

Answer 5

Collect data at a single point in time from participants of different ages.

Question 6

Longitudinal Design

Answer 6

Same people measured at different ages

Question 7

Cross-Sequential Design

Answer 7

Combo of cross-sectional and longitudinal.

Question 8

Validity

Answer 8

The degree to which the tool measures what it claims to measure
Internal Validity: The confidence that can be placed in the cause-and-effect relationship in a study
External Validity: The extent to which an effect in research can be generalized
Concurrent Validity: The extent to which the results of a particular test, or measurement, correspond to those of a previously established measurement for the same construct
Predictive Validity: Involves testing a group of subjects for a certain construct, and then comparing them with results obtained at some point in the future.

Question 9

Reliability

Answer 9

The overall consistency of a measure. Higher reliability indicates a measure will produce statistically similar results under consistent experimental conditions (e.g., 2 different social workers administer same interview, do they get same results)

Question 10

Qualitative Research

Answer 10

Systematic investigations that include inductive, in-depth, studies of individuals, groups, organizations, or communities; focuses on the why and how of decision making to better understand human behavior

Question 11

Construct Validity

Answer 11

The degree to which an instrument measures the characteristic being investigated

Question 12

Quantitative Research

Answer 12

Systematic investigations that include descriptive or inferential statistical analysis

Question 13

Null Hypothesis

Answer 13

A statement that no relationship exists between study variables