Between-subjects Design Research Articles

Hands-on training: Effects on virtual presence, learning-centered emotions, cognitive load and learning outcome when learning with virtual reality

The effect of highly immersive virtual reality (VR) on learning is mixed, partly due to technical challenges with VR equipment like head-mounted displays (HMDs) and control devices. These can distract learners from the learning environment and its relevant learning material within. This challenge might cause lower virtual presence, higher negative emotions, and extraneous cognitive (working memory) load; all of which have a negative impact on learning outcome. This study investigates whether hands-on training of the interface improves virtual presence, learning emotions, cognitive load and learning outcomes when learning about chemistry in an immersive VR environment. Seventy-six eighth graders participated in a between-subjects design (hands-on training vs. no training). The results show that pupils with hands-on training (n = 38) showed significantly higher virtual presence, lower extraneous cognitive load and higher learning outcomes than those without any initial hands-on training (n = 38). However, no significant differences in pupils’ learning emotions and in intrinsic and germane cognitive load were found. Implications for the design of highly immersive VR environments are discussed from both a cognitive and an affective perspective.

Effects of intermittent theta burst stimulation add-on to dialectical behavioral therapy in borderline personality disorder: results of a randomized, sham-controlled pilot trial

AbstractDialectical behavioral therapy (DBT) and repetitive transcranial magnetic stimulation (rTMS) are both effective in borderline personality disorder (BPD). We hypothesized that intermittent theta burst stimulation (iTBS), a modified rTMS protocol that provides unilateral stimulation to the left dorsolateral prefrontal cortex, would enhance the effects of DBT and reduce BPD-specific symptoms more than sham stimulation. We performed a single-blind, randomized, sham-controlled pilot study to evaluate iTBS as an add-on to 8-week DBT for BPD in routine inpatient treatment. A total of 53 BPD patients were randomly assigned to either iTBS (n = 25) or sham stimulation (n = 28) in weeks 4–8 of DBT; 40 patients were eligible for inclusion in the analyses according to pre-specified criteria (≥ 16 of 20 iTBS sessions). The primary endpoint was change on the 23-item Borderline Symptom List; secondary endpoints were changes in depressive symptoms and general level of functioning. A mixed model repeated measures analysis with a 2 × 2 factorial between-subjects design showed no significant effect of add-on iTBS treatment, but a distinct trend was observed in favor of iTBS (Cohen’s d = 0.23 for group difference). We found a main effect of DBT with and without iTBS over time, indicating efficacy of 8 weeks’ DBT (d = 0.89–1.12). iTBS may be beneficial as an add-on to DBT in the long term and warrants further evaluation in larger studies. Trial registration Registered at drks.de (no. DRKS00020413) on January 13, 2020.

Can time flow differently if you are a virtual reality newcomer?

Virtual Reality (VR) technologies have entered many aspects of daily life (e.g., workplace, education, gaming). VR users report that time flows faster when immersed in a virtual environment. Such an effect is supported by recent scientific evidence (Mullen & Davidenko, 2021). Indeed, a familiarity effect could foster such a time compression effect. To investigate this possibility, a between-subject design was adopted: in one condition, participants explored a virtual environment through a head-mounted display (HMD), whereas in the control condition, participants explored the same environment through a standard monitor. Participants were all instructed to produce an interval of 4 minutes so that longer produced durations in an interval production task were evidence of underestimation. Adopting a prospective time estimation paradigm, the time intervals produced were compared between the two conditions. Results confirmed the time compression effect: participants in the VR condition reported longer produced intervals than participants in the control condition. Furthermore, the significant interaction with levels of prior experience with VR technologies suggests that time compression effects may be more pronounced for VR newcomers, thus favoring an interpretation in terms of familiarity. The present findings provide valuable insights into the perception of time in virtual environments, suggesting the importance of continued research in this emerging technology. Limits, implications, and the need for further research are finally discussed.

Additional reviews, perceived credibility and consumer online purchasing behavior: a study of university students in China

PurposeThis study explores the link between additional reviews, credibility, and consumers’ online purchasing behavior.Design/methodology/approachWe employ a 2 × 2 between-subjects design to measure subjects’ purchasing behavior with versus without additional reviews and with important versus non-important attributes. A total of 529 valid questionnaires are collected from university students across 30 Chinese provinces.FindingsThe addition of negative reviews to a positive initial review enhances consumers’ perceived credibility of the reviewer and the overall review content. This effect is positively moderated by the attribute importance in additional reviews. Moreover, we find that as the time interval increases, consumers’ perceived credibility gradually increases but eventually decreases after reaching a certain threshold. In addition, the attribute importance in additional reviews negatively moderates the impact of perceived credibility on consumer purchasing behavior.Originality/valueExisting studies on first and subsequent reviews mainly focus on the difference in perceived usefulness between the two. They do not examine how additional reviews affect potential customers’ perceived credibility and their purchase decision-making. This study bridges the gap between the word-of-mouth literature and marketing practices.

Can 5 Minutes of Finger Actions Boost Creative Incubation?

AbstractPrevious studies suggest that the activation of the motor system – either via action, motor imagery, or brain stimulation – may increase subsequent performance on divergent thinking tasks (e.g., the alternate uses task; AUT). We tested this idea in a within-subjects design by administering the AUT using four different target objects and four different 5-min incubation tasks that differed in terms of arm and finger movements. In between-subjects designs, 0-back incubation has been shown to yield more creative responses than rest. Additionally, we included two new incubations that both involved arm actions, but differed in the amount of finger actions (Iranian dance, ballet dance). Incubation tasks involving finger actions (Iranian dance, 0-back) were predicted to increase creativity for objects that are typically manipulated with the fingers. There was a main effect of object. Alternate uses given to the paperclip were rated as more creative than those given to the other objects. With our within-subjects design, we could not replicate the previously described difference between 0-back and rest incubations. However, hypothesis-driven comparisons showed that, although the interaction of object and incubation was not significant, Iranian dance yielded more creative usages for paperclip than for sheet of paper, cup and brick, and all other incubations yielded more creative usages for paperclip than for brick. Iranian dance also generated marginally more creative usages than ballet. Our results suggest that if the hypothesized effects exist, they are likely to be small. Overall, AUT performance seems more influenced by the AUT object than by type of incubation.

Immersed in Art: The Impact of Affinity for Technology Interaction and Hedonic Motivation on Aesthetic Experiences in Virtual Reality

Viewing artworks through virtual reality (VR) offers a unique experience, yet understanding how individual traits and motivations affect this process requires further exploration. In this study, we empirically examined the factors influencing aesthetic experiences when viewing artworks in VR. We conducted two experiments using a between-subjects design with VR and 2D videos based on a virtual tour of the Sydney Opera House and an artistic interpretation of Vincent van Gogh's paintings as stimuli. Our moderated mediation analyses identified two pathways through which VR influences aesthetic experiences: a cognitive pathway and an affective pathway. The cognitive pathway reveals that VR enhances the sense of agency and immersion, enriching the aesthetic experience for individuals with a high affinity for technology. The affective pathway shows that VR increases narrative transportation and immersion, enhancing the aesthetic experience particularly for those with strong hedonic motivations.

Effectiveness of Psychological Counseling Intervention in High-Risk Pregnancies in Italy.

The longitudinal study examines the effectiveness of a psychological support treatment for high-risk pregnancies using a between-groups design. It assesses the treatment's impact on depression and fear of COVID-19 at three time points, and on prenatal attachment between the 20th and 24th weeks of gestation (T0), postnatal attachment 15-20 days after birth (T1), and three months after birth (T2). Additionally, the study evaluates the treatment's effectiveness on PTSD related to childbirth and parental distress at T1 and T2. The study involved 117 parents experiencing high-risk pregnancies from a Sicilian hospital: 84 mothers (40 in the experimental group, 44 in the control group) and 33 fathers (19 in the experimental group, 14 in the control group). ANOVA results showed that the psychological treatment was effective for maternal variables such as postnatal attachment and parental distress, and for paternal variables such as depression, prenatal attachment, PTSD symptoms, and parental distress (ANOVA, p < 0.05). The study highlights the growing evidence for providing continuous psychological support to couples with high-risk pregnancies, emphasizing that this support should extend beyond childbirth to assist families through this transition.

Comparison of strength and adulteration between illicit drugs obtained from cryptomarkets versus off-line.

Drugs sold on cryptomarkets are thought to have lower levels of adulteration and higher strength compared with those sourced off-line. The present study aimed to determine whether cryptomarket and off-line-sourced 3,4-methylenedioxy-N-methamphetamine (MDMA), cocaine, amphetamine, methamphetamine and lysergic acid diethylamide (LSD) differed in adulteration and strength. A between-groups design was used to compare cryptomarket versus off-line-sourced drugs. Regression analyses controlling for year and service were conducted. Drug-checking services were conducted in Spain (Energy Control) and the Netherlands (Drugs Information and Monitoring System). The cases comprised drug samples that underwent drug checking between 2016 and 2021 and were expected to contain MDMA (tablets; n = 36 065; powder: n = 6179), cocaine (n = 11 419), amphetamine (n = 6823), methamphetamine (n = 293) and LSD (n = 1817). Drugs were measured for (1) matching the advertised substance (i.e. containing any amount of the expected substance); (2) strength; (3) presence of adulteration; and (4) number of adulterants. The expected drug was more likely to be identified when sourced from cryptomarkets versus off-line for MDMA tablets [adjusted odds ratio (AOR) = 2.10, 95% confidence interval (CI) = 1.28-3.43], MDMA powder (AOR = 2.64, CI = 1.55-4.51), cocaine (AOR = 3.65, CI = 1.98-6.71) and LSD (AOR = 1.75, CI = 1.13-2.72). Cryptomarket-sourced MDMA powder (β = 0.03, P = 0.012), cocaine (β = 0.08, P < 0.001) and methamphetamine (β = 0.15, P = 0.028) were statistically significantly higher in strength than substances from off-line sources. Conversely, MDMA tablets (β = -0.01, P = 0.043) and amphetamine (β = -0.07, P < 0.001) from cryptomarkets were statistically significantly lower in strength than from off-line sources. MDMA powder (AOR = 0.53, CI = 0.33-0.86) and cocaine (AOR = 0.66, CI = 0.55-0.79) were statistically significantly less likely to be adulterated if sourced from cryptomarkets. However, amphetamine (AOR = 1.54, CI = 1.25-1.90) and LSD (AOR = 1.31, CI = 1.00-1.71) were found to be more likely to be adulterated when purchased from cryptomarkets. Cocaine from cryptomarkets exhibited fewer adulterants (incidence rate ratio = 0.71, CI = 0.60-0.85). The relationship between on-line drug market-places and substance quality varies depending on both the specific substance and the dynamics of the cryptomarket.

Gendered Brand Cues and Sustainability Perceptions: Exploring the Role of Brand Gender in Consumer Sustainability Judgments

While sustainability is a key consideration for many consumers, discerning a brand’s sustainability is too complex for routine consumption choices, often leading people to rely on irrelevant cues. Perhaps one such cue is the perceived gender of products and brands. Building on existing literature which suggests an association between environmentally conscious behavior and femininity (Brough et al., 2016), the present research explores whether gendered brand cues influences consumers’ perceptions of the brand’s sustainability, and in so doing impacts their purchase intentions and attitudes toward the brand. We conducted a preregistered study with 600 participants to investigate the causal impact of brand gender on sustainability perceptions. Using a 2 x 3 between-subjects design, participants were either primed to report their own green consumption values or not and then randomly assigned to one of three conditions: masculine, feminine, or neutral (control). Each participant was presented with a coffee brand where the brand's gender was manipulated through semantic (e.g., brand name) and visual (e.g., packaging) cues. When primed with a sustainability cue, participants who saw the feminine-branded product viewed it as significantly more sustainable than the neutral (control) condition (p=.007) and marginally more sustainable than the masculine-branded product (p=.070). We also found that across all conditions, sustainability perceptions predicted purchase intentions (p&lt;.001) These findings suggest a potential relationship between the gender of a product’s branding and the extent to which the brand is perceived as sustainable. This research not only provides insights for marketers to strategically position products to align with eco-conscious consumer values but also contributes to the broader literature on how consumers form sustainability judgments about products, highlighting the subtle influence of gendered branding in this process.

Presenting decision-relevant numerical information to Dutch women aged 50-70 with varying levels of health literacy: Case example of adjuvant systemic therapy for breast cancer.

If communicated adequately, numerical decision-relevant information can support informed and shared decision making. Visual formats are recommended, but which format supports patients depending on their health literacy (HL) levels for specific decisions is unclear. The aim of this study is to investigate: 1) the effect of survival rates and side-effects presentation formats on comprehension and 'feeling informed'; 2) differential effects among women with higher/lower HL, with adjuvant systemic breast cancer therapy as case example. Two online experiments among women from the Dutch population without a history of breast cancer were conducted. Experiment 1 had a 3 (survival rate format: text block-bar graph-icon array) x 2 (HL: low-high) between-subjects design. Experiment 2 had a 5 (side-effects format: no probability information-probability information in numbers with or without a visualisation-probability information in numbers with or without a visualisation accompanied by a description of the side-effects) x 2 (HL: low-high) design. Primary outcomes were comprehension and feeling informed (Experiment 2 only). Formats were previously designed in co-creation with patients. In Experiment 1, presentation format did not affect gist or verbatim comprehension. Higher HL was associated with higher gist comprehension. Experiment 2 showed an interaction between presentation format and HL on 'feeling informed'. When provided with visualised probability information without a description of the side-effects, women with lower HL felt better informed than women with higher HL. Visual formats did not enhance comprehension of survival rate information beyond a well-designed text block format. However, none of the formats could overcome HL differences. When designing decision-relevant information, visualisations might not necessarily provide an advantage over structured numerical information for both patients with lower and higher HL. However, a deeper understanding of presenting side-effect information is warranted.

The more followers the better? The impact of food influencers on consumer behaviour in the social media context

PurposeThe study explores the impact of food influencers on consumer behaviour in the social media context. It assesses the interplay between the number of followers an influencer has and the type of content this influencer communicates to the audience. Doing so, the research contributes to the strategic refinement of influencer marketing practices, especially in the food industry.Design/methodology/approachThe study employed an experimental between-subject design 2 (influencer type: micro vs macro) x 2 (content type: informational vs entertaining). It recruited 197 Prolific participants (45.7% female, Mage = 45.076), testing their perceptions towards the influencer and the endorsed product in the social media post.FindingsThere was a significant interaction between influencer type and content type on consumers’ attitudes towards and their willingness to buy the advertised product. Specifically, the notion that “the more followers, the better” may only be applicable when consumers peruse the content for entertainment purposes, whereas while they read it for information purposes, a micro influencer (with hundreds to thousands of followers) may have as much impact on consumer behaviour as a macro influencer (with hundreds of thousands to a million followers).Originality/valueOur findings offer a nuanced understanding into the conventional wisdom that people often follow crowd behaviour. Using the Heuristic-Systematic Model (HSM), we explicate when the number of followers matters and when the content type prevails.

Cross-Cultural Career Paths: Analyzing Traditional and Boundaryless Orientations Among Expatriates in Saudi Arabia's Banking Sector

This study aimed to investigate differences in dominant career orientations between self-initiated expatriates (SIEs) and company-assigned expatriates (AEs). Schein’s career model provides a theoretical framework to investigate differences in career preferences and orientations between SIEs and AEs. This paper builds career constructs by dividing the eight career anchors into two groups (boundaryless and traditional-oriented anchors). The career anchor model is used to investigate if a comparable sample of SIEs and AEs drawn from the banking sector in Saudi Arabia exhibits traditional and/or boundaryless career orientations. A between-subjects design was used, and MANOVA was used to analyze data from 418 expatriates working within the Saudi banking sector to understand how the career orientations of SIEs and AEs differ. Compared to AEs, SIEs were found to be more oriented to traditional career anchors characterized by technical/functional competence and security/stability. This study makes an important contribution to existing knowledge on SIE orientations by identifying differences that exist between traditional and boundaryless careers. The findings reveal differences between SIEs and AEs regarding their technical/functional competence, security/stability, lifestyle, and pure challenge career anchors. Managers need to use bespoke HRM policies and procedures to cater to the career orientation of each expatriate cohort accordingly. This quantitative study reveals factors that impact organizationally and individually managed careers in different directions. Therefore, this study presents a clear distinction between the two career orientations and argues that they can be viewed through the lenses of boundaryless and/or traditional career perspectives.

Social Media and Adolescents' Prosocial Behavior: Evidence of the Interaction Between Short Videos and Social Value Orientation.

Social media significantly influences adolescents' prosocial behavior. With smartphones becoming ubiquitous, short videos have emerged as the predominant social media format for adolescents. However, the effects of adolescents' engagement with short videos on their prosocial behavior remain uncertain. This study aims to address the problem of how short videos (content and consequences) affect prosocial behavior in adolescents, and simultaneously explores the differences of this effect among individuals with different social value orientations. The current study conducted two research laboratory experiments using the between-subject study design of two factors. Study 1 (N=148) reveals that viewing prosocial short videos significantly predicts adolescents' prosocial behavior more so than neutral short videos. The interaction between short video content and social value orientation on prosocial behavior illustrates that the encouraging impact of prosocial content is primarily evident in prosocial individuals, rather than in pro-self individuals. In Study 2 (N=152), we introduce new dimensions by assessing adolescents' response to varying consequences of the same prosocial behavior (ie, reward, punishment) within the short video context. Findings indicate that reward consequences significantly bolster adolescents' prosocial behavior, whereas punitive measures tend to adversely affect it. Furthermore, the interaction between the consequences of prosocial short videos and social value orientation suggests that prosocial individuals exhibit no significant behavioral difference between rewards and punishments; instead, the reward/punishment consequences notably influence the prosocial behavior of pro-self individuals. Short videos (content and consequences) and social value orientations interactively influence adolescents' prosocial behaviors. This study underscores the need to recognize individual differences in adolescents' use of short videos and its impact on their prosocial behavior, particularly highlighting the crucial role of their social value orientations. Practically, the research offers valuable insights for parents and professionals seeking to foster adolescents' prosocial behavior.

Forget me not: The effect of doxycycline on human declarative memory

Investigations into neuroprotective drugs are in high demand for the treatment of neurodegenerative diseases, such as multiple sclerosis or Alzheimer's disease, but also psychiatric disorders, such as depression, trauma, and substance use. One potential drug class being investigated are tetracyclines impacting on a variety of neuroprotective mechanisms. At the same time, tetracyclines like doxycycline have been suggested to affect human fear and spatial memory as well as reducing declarative memory retention. Based on the assumed necessity for synaptic consolidation in hippocampus-dependent learning, we hypothesised declarative memory may be similarly impaired by doxycycline as fear and spatial memory. Therefore, in this study we investigate the potential diminishing effects of doxycycline on consolidation of declarative memory in healthy humans. Additionally, to test for effect specificity we assessed motor memory, sustained attention, and processing speed. We administered a neuropsychological test battery in three independent randomized placebo-controlled double-blind trials (RCTs), in which healthy young volunteers (total N = 252) either received a single oral dose doxycycline (200 mg, n = 126) or placebo (n = 126) in a between-subject design. We found no evidence for a detrimental effect of doxycycline on declarative memory; instead, doxycycline improved declarative learning (p-value=0.022, Cohen's d=0.15) and memory consolidation (p=0.040, d=0.26). Contrarily, doxycycline slightly reduced motor learning (p=0.001, d=0.10) but subtly strengthened long-term motor memory (p=0.001, d=0.10). These results suggest that doxycycline can improve declarative learning and memory without having long term negative effects on other cognitive domains in healthy humans. Our results give hope to further investigate doxycycline in neuroprotective treatment applications.

Within-subject comparison of near-death and psychedelic experiences: acute and enduring effects.

Mystical-like states of consciousness may arise through means such as psychedelic substances, but may also occur unexpectedly during near-death experiences (NDEs). So far, research studies comparing experiences induced by serotonergic psychedelics and NDEs, along with their enduring effects, have employed between-subject designs, limiting direct comparisons. We present results from an online survey exploring the phenomenology, attribution of reality, psychological insights, and enduring effects of NDEs and psychedelic experiences (PEs) in individuals who have experienced both at some point during their lifetime. We used frequentist and Bayesian analyses to determine significant differences and overlaps (evidence for null hypotheses) between the two. Thirty-one adults reported having experienced both an NDE (i.e. NDE-C scale total score ≥27/80) and a PE (intake of lysergic acid diethylamide, psilocybin/mushrooms, ayahuasca, N,N-dimethyltryptamine, or mescaline). Results revealed areas of overlap between both experiences for phenomenology, attribution of reality, psychological insights, and enduring effects. A finer-grained analysis of the phenomenology revealed a significant overlap in mystical-like effects, while low-level phenomena (sensory effects) were significantly different, with NDEs displaying higher scores of disembodiment and PEs higher scores of visual imagery. This suggests psychedelics as a useful model for studying mystical-like effects induced by NDEs, while highlighting distinctions in sensory experiences.

Purchasing vegan latte or plant-based latte: label communications toward sustainability

Abstract Consumers increasingly prefer lattes using alternative milk from plant-based sources. This study aims to find the factors affecting consumer intention to purchase lattes using alternative milk from plant-based sources and to compare the links between the factors and purchase intentions depending on two labels, “vegan” and “plant-based.” An online, scenario-based experiment was conducted with a between-subjects design (plant-based: n=268, vegan: n=265), followed by a survey. In both groups, the results show that the perceived benefits positively affect purchase intention, but the perceived barrier (i.e., vegetarian stigma) did not. Perceived benefits and preference were higher when showing a “plant-based latte” label focusing on the presence of plant-based ingredients than when showing a “vegan latte” label focusing on the absence of animal-based ingredients. For the label “vegan latte,” even if consumers are non-vegan, the higher their food curiosity, food snobbery, and food variety-seeking tendency, the higher their purchase intention. It suggests to marketers and menu developers what needs to be highlighted and which consumers to target to boost sales of latte using alternative milk. The findings emphasize the potential for labels to promote the purchase intention of alternative lattes, offering a strategy for changing consumer behavior.

Promoting HPV vaccination: effectiveness of mobile short videos for shaping attitudes and influencing behaviors

The explosive growth and attractive features of mobile short videos (MSVs) have made it become an effective tool for disseminating health-related information. This study aims to examine the potential informational and technical factors of MSVs, which contribute to the persuasive effects on people’s decision-making process toward HPV vaccination. An experiment with a 2 (information quality: high vs. low) × 2 (source credibility: high vs. low) × 2 (media richness: high vs. low) between-subject factorial design was conducted among 248 Chinese female students. Findings revealed significant persuasive impacts of three factors, i.e., information quality, source credibility, and media richness, on participants’ HPV vaccination intent, via the mediation effect of attitude toward HPV vaccine information. Significant two-way interaction effects indicated that the persuasive effects of media richness varied across different levels of information quality and source credibility. This research not only applied the theoretical lens of the elaboration likelihood model and media richness theory to understand the influencing mechanism within short-form videos but also offered valuable guidelines regarding how professionals best adopt emerging media to maximize health outcomes.

Can sensory and semantic priming enhance the effects of guided self-compassion meditation? A proof-of-concept study.

Self-compassion is a fundamental aspect of psychological health and well-being that can be cultivated through self-compassion meditations, but it remains unclear how to facilitate this most effectively. This study is the first to explore whether sensory and semantic priming introduced prior to a guided self-compassion meditation could enhance the effects of meditation in comparison with a control condition. The study was conducted with 3 × 3 repeated measures between-group design, including three groups (sensory priming, semantic priming and control group), and three assessment time points of state self-compassion, self-criticism, and positive and negative affect (at baseline, after priming, and after guided meditation). Additionally, a meditation appeal questionnaire was used. The total sample size included 71 students who underwent a 3-min priming intervention followed by a 15-min self-compassion guided meditation session. First, prior to guided meditation, sensory priming significantly decreased state self-criticism more than the control condition or semantic priming, although some reliability issues of the applied self-criticism scale must be taken into consideration. Second, neither sensory nor semantic priming changed state self-compassion, positive affect or negative affect. Third, neither semantic nor sensory priming significantly enhanced the effects of guided self-compassion meditation either in positive and negative affect, self-compassion states, self-criticism states, or in the appeal of the meditation experience. Although this study is underpowered (estimated post hoc power ranges from 0.20 to 0.42), the findings provide preliminary insights into the potential priming has as a tool to enhance meditation effects and provide guidelines for future studies.

Development and Evaluation of Training Scenarios for the Use of Immersive Assistance Systems

Emerging assistance systems are designed to enable operators to perform tasks better, faster, and with a lower workload. However, in line with the productivity paradox, the full potential of automation and digitalisation is not being realised. One reason for this is insufficient training. In this study, the statistically significant differences among three different training scenarios on performance, acceptance, workload, and technostress during the execution of immersive measurement tasks are demonstrated. A between-subjects design was applied and analysed using ANOVAs involving 52 participants (with a statistical overall power of 0.92). The ANOVAs were related to three levels of the independent variable: quality training, manipulated as minimal, personal, and optimised training. The results show that the quality of training significantly influences immersive assistance systems. Hence, this article deduces tangible design guidelines for training, with consideration of the system-level hardware, operational system, and immersive application. Surprisingly, an appropriate mix of training approaches, rather than detailed, personalised training, appears to be more effective than e-learning or ‘getting started’ tools for immersive systems. In contrast to most studies in the related work, our article is not about learning with AR applications but about training scenarios for the use of immersive systems.

How do species richness and colour diversity of plants affect public perception, preference and sense of restoration in urban green spaces?

Urban development has led to an overlap between natural and artificial environments, affecting individuals’ experiences with nature. To create high-quality urban natural environments, it is crucial to understand the residents’ perceptions, preferences and psychophysical health benefits concerning biodiversity. This study, employing various experimental designs, investigated the perceptions, preferences and restorative experiences of 695 participants concerning different levels of plant species richness and colour diversity in four typical urban green space types (lawn, forest, square and streetscape). The following discoveries were made: (i) The colour diversity carried by vegetation in lawns was an important basis for the public to identify plant diversity. Lawns with high richness achieved by different grass species (that have green colour) were not preferred by the public, and increased colour diversity that can be achieved by adding flowering plants (forbs) was preferred by people more than a single green lawn. The species richness of forests was positively correlated with public perception, preference and perceived restoration, with single green forests being preferred by the public. Additionally, people preferred vegetated environments over unvegetated squares or streetscapes. (ii) Participants’ perceptions, preferences and perceived restoration were positively correlated. Their preference for and perceived restoration from plant diversity depended more on their perception of it than on the actual species richness. (iii) Participants’ gender, expertise, physical condition, ecological knowledge, childhood living environment, frequency of use and accessibility of green spaces, natural orientation (connectedness), gardening, sense of security and well-being all influenced their perceptions, preferences and perceived restoration from plant diversity to varying extents. Significant distinctions were found between different forms of experimental design. Combining between-subject and within-subject designs could both control individual errors to some extent and avoid long-term effects on the participants compared to using either design alone. These findings provide a theoretical basis and practical approach for future biodiversity-oriented urban green space planning and management to better maximise the ecological and social service benefits of urban green spaces.