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About 10,000 papers for “Randomized experiment”

Study 1: Randomized vignette experiment

Fabiola H. Gerpott, Florian Klonek, Sharon K. Parker · OSF Preprints (OSF Preprints) · 2020

Study 1 aims to replicate previous research (i.e., Alghamdi, 2018; Rosing & Zacher, 2017; Zacher et al., 2016; Zacher & Rosing, 2015; Zacher & Wilden, 2014) by testing the causal effects of leader ambidexterity on follower ambidexterity and innovative performance (rated by subject matter experts) through a randomized experimental study with four conditions (i.e., opening, closing, ambidextrous, and a control condition of transformational leadership). In the main experimental study, all participants first received the general task instructions (see Appendix E) and were provided with access to the material (Appendix F). They were then randomly assigned to one of the four conditions: (1) leader opening, (2) leader closing, (3) leader ambidexterity, and (4) transformational leadership (see Appendix I). In each of the four conditions, participants received two emails from their supervisor: the first one before the task and the second one during the task (i.e., after 15 min).

Cited by 0

Evidence from a Randomized Experiment

Willard G. Manning, Joseph P. Newhouse, Naihua Duan et al. · 2013

Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at

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Evidence from a Randomized Experiment

Link To, Dr. Aldo Colussi · 2008

Provided by the author(s) and University College Dublin Library in accordance with publisher policies. Please

Cited by 0

Study 1: Randomized vignette experiment

Sharon K. Parker, Fabiola H. Gerpott, Florian Klonek · OSF Preprints (OSF Preprints) · 2020

Study 1 aims to replicate previous research (i.e., Alghamdi, 2018; Rosing & Zacher, 2017; Zacher et al., 2016; Zacher & Rosing, 2015; Zacher & Wilden, 2014) by testing the causal effects of leader ambidexterity on follower ambidexterity and innovative performance (rated by subject matter experts) through a randomized experimental study with four conditions (i.e., opening, closing, ambidextrous, and a control condition of transformational leadership). In the main experimental study, all participants first received the general task instructions (see Appendix E) and were provided with access to the material (Appendix F). They were then randomly assigned to one of the four conditions: (1) leader opening, (2) leader closing, (3) leader ambidexterity, and (4) transformational leadership (see Appendix I). In each of the four conditions, participants received two emails from their supervisor: the first one before the task and the second one during the task (i.e., after 15 min).

Cited by 0

Social Influence Bias: A Randomized Experiment

Lev Muchnik, Sinan Aral, Sean J. Taylor · Science · 2013

Our society is increasingly relying on the digitized, aggregated opinions of others to make decisions. We therefore designed and analyzed a large-scale randomized experiment on a social news aggregation Web site to investigate whether knowledge of such aggregates distorts decision-making. Prior ratings created significant bias in individual rating behavior, and positive and negative social influences created asymmetric herding effects. Whereas negative social influence inspired users to correct manipulated ratings, positive social influence increased the likelihood of positive ratings by 32% and created accumulating positive herding that increased final ratings by 25% on average. This positive herding was topic-dependent and affected by whether individuals were viewing the opinions of friends or enemies. A mixture of changing opinion and greater turnout under both manipulations together with a natural tendency to up-vote on the site combined to create the herding effects. Such findings will help interpret collective judgment accurately and avoid social influence bias in collective intelligence in the future.

Cited by 820

a randomized experiment with diabetic patients

Balsa, Ana I., Gandelman, Néstor · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · 2011

Se estudian los efectos de una intervención basada en Internet en pacientes diabéticos del tipo II residentes en Montevideo. Se diseñó un sitio web y una red social virtual donde los participantes podían navegar, bajar información e interactuar con otros diabéticos así como con especialistas. No se encontró un impacto significativo del uso de estas tecnologías en el conocimiento, comportamiento o resultados de salud de los participantes

Cited by 0Open access

Evidence from a randomized field experiment

Frick, Thomas, Belo, Rodrigo, Telang, Rahul · Universidade Nova de Lisboa's Repository (Universidade Nova de Lisboa) · 2023

In programmatic advertising, firms outsource the bidding for ad impressions to ad platforms. Although firms are interested in targeting consumers that respond positively to advertising, ad platforms are usually rewarded for targeting consumers with high overall purchase probability. We develop a theoretical model that shows if consumers with high baseline purchase probability respond more positively to advertising, then firms and ad platforms agree on which consumers to target. If, conversely, consumers with low baseline purchase probability are the ones for which ads work best, then ad platforms target consumers that firms do not want to target—the incentives are misaligned. We conduct a large-scale randomized field experiment, targeting 208,538 individual consumers, in a display retargeting campaign. Our unique data set allows us to both causally identify advertising effectiveness and estimate the degree of incentive misalignments between the firm and ad platform. In accordance with the contracted incentives, the ad platform targets consumers that are more likely to purchase. Importantly, we find no evidence that ads are more effective for consumers with higher baseline purchase probability, rendering the ad platform’s bidding suboptimal for the firm. A welfare analysis suggests that the ad platform’s bidding optimization leads to a loss in profit for the firm and an overall decline in welfare. To remedy the incentive misalignment, we propose a solution in which the firm restricts the ad platform to target only consumers that are profitable based on individual consumer-level estimates for baseline purchase probability and ad effectiveness.

Cited by 0Open access

Randomized survey experiment on environmental communications

Hokkanen, Lari, Harjunen, Ville Johannes · Open Science Framework · 2022

The study examines the effectiveness of news communications related to the environmental impact of medicines on Finnish pharmacy customers' intention to distribute related news on social media. The study builds on the research literature on social media, political psychology, and environmental communication. The research follows a two-by-four factorial design with two factors: debiasing and framing. By manipulating the debiasing factor, we examine the effects of raising awareness of skewed information processing and news sharing behavior in social media. Manipulation of the framing enables us to investigate the effects of four alternative communicative frameworks on the environmental impact of medicines: factual knowledge sharing, localization of the environmental impact, and emphasizing the customers' role. The experiment is conducted online using Qualtrics. The procedure has two parts. Initially, one group of respondents receive a debias intervention that raises awareness of the skewed information processing and news sharing behavior on social media. Others will only be asked to read the news text and answer questions. Participants then read one of four differently communicatively framed news texts. The factual claims about the environmental impact of medicines are the same in all frameworks, but in addition to a factual framing (control) one framework brings the phenomenon close to the participant's living environment (localization), another provides ways to reduce the environmental burden of medicines (customers' role). The control condition includes only the factual claims about the environmental impact of medicines. In the fourth framing condition, the localization and customers' role are combined. The different frameworks are expected to have a different impact on participants' intention to distribute news material on the environmental impact of medicines on social media (primary response variable). Specifically, we hypothesize that compared to control, the localization and customer's role frameworks, as well as their combination, raise the news sharing intentions. Moreover, we hypothesize that the sharing intentions are higher among those who receive the debiasing intervention prior to reading the news article. In addition, secondary response variables are included. The research is part of the SUDDEN project, funded by the Strategic Research Council, which aims to reduce the environmental impact of medicines throughout the value chain.

Cited by 0Open access

Evidence from a Randomized Field Experiment*

Guido Schwerdt, Dolores Messer, Ludger Woessmann et al. · 2011

Lifelong learning is often promoted in ageing societies, but little is known about its returns or governments ’ ability to advance it. This paper evaluates the effects of a large-scale randomized field experiment issuing vouchers for adult education in Switzerland. We find no significant average effects of voucher-induced adult education on earnings, employment, and subsequent education one year after treatment. But effects are heterogeneous: Low-education individuals are most likely to profit from adult education, but least likely to use the voucher. The findings cast doubt on the effectiveness of existing untargeted voucher programs in

Cited by 0