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Related Concept Videos

Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
What is an Experiment?01:12

What is an Experiment?

An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
Group Design02:01

Group Design

The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs01:20

Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs

Bioequivalence experimental study designs are crucial methodologies used in evaluating and comparing the bioavailability of different drug products. These designs are categorized into various types: completely randomized, randomized block, repeated measures, cross and carry-over, and Latin square designs.Completely randomized designs involve randomly allocating treatments to all subjects participating in the experiment. This allocation is achieved by assigning unique random numbers to subjects...
Nursing Process for Patient and Caregiver Teaching III: Evaluation and Documentation01:20

Nursing Process for Patient and Caregiver Teaching III: Evaluation and Documentation

Evaluation of the teaching process enables the nurse to determine if the patient's learning needs were met and if training was effective. If the expected outcomes are not met, the care plan is revised, and additional education or reinforcement is provided. Nurses can ask questions after the session or obtain feedback to assess the patient's understanding of the topic.
Nurses can use several methods to evaluate patient outcomes. For example, oral questions can assess cognitive learning, patient...
Regression Toward the Mean01:52

Regression Toward the Mean

Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...

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Related Experiment Video

Updated: May 8, 2026

Project-Based Learning Guidelines for Health Sciences Students: An Analysis with Data Mining and Qualitative Techniques
13:44

Project-Based Learning Guidelines for Health Sciences Students: An Analysis with Data Mining and Qualitative Techniques

Published on: December 9, 2022

Improving Education in the Developing World: What Have We Learned from Randomized Evaluations?

Michael Kremer1, Alaka Holla

  • 1Department of Economics, Harvard University, Cambridge, MA 02138.

Annual Review of Economics
|August 16, 2013
PubMed
Summary

Reducing education costs and offering subsidies significantly increases school participation. Interventions like merit scholarships and pedagogical innovations improve learning outcomes cost-effectively.

Keywords:
peer effectsschool attendanceschool qualityteacher incentives

Related Experiment Videos

Last Updated: May 8, 2026

Project-Based Learning Guidelines for Health Sciences Students: An Analysis with Data Mining and Qualitative Techniques
13:44

Project-Based Learning Guidelines for Health Sciences Students: An Analysis with Data Mining and Qualitative Techniques

Published on: December 9, 2022

Area of Science:

  • Education Economics
  • Developmental Psychology
  • Public Policy

Background:

  • School participation is influenced by cost, subsidies, peer effects, and time preferences.
  • Existing education systems often have distortions like weak teacher incentives and elite curricula that hinder learning.
  • Previous interventions have shown mixed results in improving educational outcomes.

Purpose of the Study:

  • To identify cost-effective interventions for boosting school participation and learning.
  • To analyze the impact of various factors, including subsidies, peer effects, and pedagogical innovations, on educational attainment.
  • To evaluate strategies for overcoming systemic distortions in education.

Main Methods:

  • Review of empirical evidence on educational interventions across diverse contexts.
  • Analysis of cost-effectiveness of different approaches, including subsidies, scholarships, health programs, and pedagogical innovations.
  • Examination of the impact of teacher incentives, curriculum design, and school management practices.

Main Results:

  • Reducing education costs and providing subsidies are highly effective in increasing school participation.
  • Merit scholarships, school health programs, and information dissemination are cost-effective for boosting attendance.
  • Pedagogical innovations like technology-assisted instruction and remedial education improve test scores affordably.
  • School vouchers can effectively enhance both participation and learning outcomes.
  • Hiring local teachers on short-term contracts can improve outcomes and reduce costs, though merit pay evidence is mixed.

Conclusions:

  • Financial incentives and targeted programs can significantly improve school participation and learning.
  • Addressing systemic educational distortions through pedagogical innovations and efficient management is crucial for maximizing impact.
  • School vouchers present a cost-effective policy tool for enhancing educational attainment.