One way to measure the extent to which a measure is free of random error is to compute its:
Test-retest reliability
To determine the extent to which a measure is free of random error, we should consider the concept of reliability in research measurement. Specifically, when we talk about reliability, we're often referring to the consistency of a measure.
The correct answer here is Test-retest reliability. Let's break this down:
- Test-retest reliability: This measures the stability of a test over time. You administer the same test to the same subjects under the same conditions across two different points in time. High correlation between the two test scores indicates high test-retest reliability, suggesting that the measure is consistent and not disproportionately affected by random errors.
- Demand characteristics: These refer to cues in an experiment that might influence participants' behavior, often leading them to respond in a way they think matches the experimenter's expectations. It is unrelated to measuring random error in tests.
- Content validity: This assesses whether a test measures the entire range of possible items that it should cover. It is about the adequacy of test coverage rather than its freedom from random error.
- Experimenter's bias: This pertains to the experimenter's expectations influencing participants' behavior or the interpretation of results. It is more about systematic bias rather than random error.
Thus, Test-retest reliability is concerned with evaluating the extent to which a measure is free of random error by checking its consistency over time.
Similar Questions
Match List I with List II
LIST I (Type of Evaluation) LIST II (Main Issue for Evaluation) A. Program/Intervention planning Evaluation I. Effectiveness of a program / Intervention B. Process/ monitoring Evaluation II. Need for a program/ Intervention C. Impact/Outcome Evaluation III. Efficiency of the service delivery D. Cost-effective Evaluation IV. Cost of delivering the service Choose the correct answer from the options given below:
Quasi-experiments are usually conducted in
When results obtained in a research study can be extended to a group larger than the sample (outside the context of the study) it is called
The research design is specifically related to which of the following features in research?
(i) Sample Selection
(ii) Formulation of a plan
(iii) Deciding about the tool for data collection
(iv) Hypothesis making
(v) Choice of a field of inquiry
Select your answer from the options given below:Match the type of validity with its major source of problem:
LIST 1 (Validity Type) LIST 2 (Description/Threat) (a) Construct validity (i) Faulty or poor measure, resulting in mislabeling/ misinterpreting behaviour (b) External Validity (iii) Sample of participants was not representative (c) Internal Validity (ii) Treatment and no-treatment groups were unequal before the study began To reduce random error ? Which method is appropriate
The components of a research design are:
(a) Comparison
(b) Control
(c) Reactivity
(d) Manipulation
(e) Non-representativeness
(f) Generalisation
Artifacts that arise and affect the internal validity in research are:
(a) History
(b) Randomisation
(c) Maturity
(d) Instrumentation
(e) Experimental mortality
(f) Matching
Important Questions from Research Design
Design used in experimental research in which groups are randomly formed and that controls most sources of invalidity is known as
‘Which of the following are the complete experimental research designs?
(A) Factorial design
(B) One group after-only design
(C) Before-after design with one experiment and two control groups
(D) Latin square design
(E) One-group before-after design
Choose the correct answer from the options given below:
The 'Age' of a respondent is an example of
The internal validity factor in research is related to the issue of
The post-test only control group design avoids:
