Open Access. Powered by Scholars. Published by Universities.®

Experimental Analysis of Behavior Commons™

Open Access. Powered by Scholars. Published by Universities.®

Western Michigan University

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 91 - 120 of 410

Full-Text Articles in Experimental Analysis of Behavior

Self-Criticism As Experienced By Performing Artists A Phenomenological Study, Rosemary Hakes Jun 2001

Self-Criticism As Experienced By Performing Artists A Phenomenological Study, Rosemary Hakes

Dissertations

The purpose of this study was to describe and document the essence of the experience of self-criticism for performing artists with the aim of providing recommendations for educational and therapeutic purposes. Moustakas (1994) defines essence as “that which is common or universal, the condition or quality without which a thing would not be what it is” (p. 100). In this study a phenomenological research paradigm was used. Each step in the data reduction process built directly toward revelation of essence through synthesis.

The central question guiding this research was: What is the essence of self-criticism as it is experienced by …


The Influence Of Race On Ethical Decision-Making Regarding Nonsexual Dual Relationships, Beatrice Antly Tatem Apr 2001

The Influence Of Race On Ethical Decision-Making Regarding Nonsexual Dual Relationships, Beatrice Antly Tatem

Dissertations

Ethical decision-making is a crucial part of the daily practice of psychologists. Psychologists are faced with the challenge of developing ethical decision-making strategies that effectively address the dilemmas associated with dual relationships. Nonsexual dual relationship is defined in this research as a clinical professional relationship that occurs simultaneously with a nonsexual professional and/or personal relationship. Psychologists, regardless of the environment in which they work or the client population with whom they work, can experience a nonsexual dual relationship.

The current study investigated whether ethnographic therapist characteristics influence the interpretation and application of the APA Ethical Guidelines and thus psychologists’ decision-making …


Promoting Healthy Behavior Change In Skin Cancer Risk Reduction Using The Transtheoretical Stages Of Change Model, Sherry L. Pagoto Apr 2001

Promoting Healthy Behavior Change In Skin Cancer Risk Reduction Using The Transtheoretical Stages Of Change Model, Sherry L. Pagoto

Dissertations

Skin cancer is the most commonly diagnosed cancer in the United States with 20% of people developing some form of skin cancer in their lifetime (American Cancer Society, 1999). In spite of the high incidence of skin cancer, it is highly preventable. Approximately 90% of the cases are caused by exposure to ultraviolet radiation from the sun (Skin Cancer Foundation, 1992). The effect of an intervention aimed at reducing skin cancer risk was compared to a survey only control group in 99 Chicago beach-goers. The intervention was based on the Transtheoretical Stages of Change Model (TTM) and included sun sensitivity …


Emotional Expressiveness And Problematic Behaviors Among Male Juvenile Sexual Offenders, General Offenders, And Nonoffenders, Carin M. Ness Dec 2000

Emotional Expressiveness And Problematic Behaviors Among Male Juvenile Sexual Offenders, General Offenders, And Nonoffenders, Carin M. Ness

Dissertations

This analytic variable study examined the potential differences that exist among male juvenile sexual offenders (JSOs), general offenders (GOs), and nonoffenders (NOs) on the emotional expressiveness variables of alexithymia and affective orientation, and three problematic behavior variables including self-defeating behavior, risk taking, and reckless behavior. It was hypothesized that JSOs and GOs would be statistically significantly different than NOs on all variables but not different from each other.

Hypotheses were tested by a MANOVA. When statistical significance was indicated, ANOVAs were computed to identify the specific groups and measures, which were statistically significant The significance level for all analyses was …


The Supplemental Effects Of Feedback On Productivity Under Individual Incentives, Barbara R. Bucklin Aug 2000

The Supplemental Effects Of Feedback On Productivity Under Individual Incentives, Barbara R. Bucklin

Dissertations

This study examined the effects of an individual incentive system with and without feedback in order to determine if feedback supplements the effects of incentives. Participants were seven college students who performed a computerized work task called SYNWORK. SYNWORK presented four sub-tasks concurrently: memory, arithmetic, visual monitoring and auditory monitoring. Participants earned points for correct responses. Dependent variables were the total number of points earned, percent correct, and time-on-task. An ABAC within-subject reversal design was used with A = individual monetary incentives without feedback, B = individual monetary incentives with end-of-session feedback, and C = hourly pay with end-of session …


Affective Responses To Television Newscasts: Have You Heard The News?, Jessica Purtan Harrell Jun 2000

Affective Responses To Television Newscasts: Have You Heard The News?, Jessica Purtan Harrell

Dissertations

This study examined the impact o f television news viewing on affective responses in viewers. Participants watched a 10-minute newscast that contained only negative, only positive, or both negative and positive news stories at either 8:00 a.m. or 6:00 p.m. Negative news viewers showed elevations in anxiety and negative affect, while positive news viewers showed decreases in anxiety and negative affect. Watching a combined newscast resulted in no mood changes. Affective changes caused by watching the news were not maintained 3 hours after viewing, and morning versus evening viewing had no impact on mood responses to that news. While news …


The Experience Of Interpersonal Forgiveness: An Empirical-Phenomenological Investigation, Halimatun Halaliah Mokhtar Apr 2000

The Experience Of Interpersonal Forgiveness: An Empirical-Phenomenological Investigation, Halimatun Halaliah Mokhtar

Dissertations

The purpose of this qualitative study was to investigate the lived experience of interpersonal forgiveness of individuals (known as co-researchers) by employing the empirical-phenomenological method. This study aimed at identifying, understanding, and describing the general psychological meaning (Tesch, 1990) or the essences/structures (Moustakas, 1994) of the experience of the phenomenon through the protocols of these individuals. It was also a goal of this study to develop a psychological theory of interpersonal forgiveness.

A two-interview structure was conducted with eight individuals (three males and five females) who had forgiven their significant offending others. The first interview focused on the meaning and …


Evaluating The Effects Of Postive Peer Reporting On Social Acceptance, Mary Short Dec 1999

Evaluating The Effects Of Postive Peer Reporting On Social Acceptance, Mary Short

Dissertations

The effects of a positive peer reporting procedure on social status and social interactions were assessed. Children who are socially rejected seem to be disliked by their peers due to their high frequency of negative behaviors and low frequency of positive behaviors. Therefore, to decrease the negative behaviors and increase the positive behaviors, rejected children were asked to make positive comments about their peers. Participants included 4 children, ages 10-15 years. A multiple baseline across subjects design was utilized. Collection of baseline data began immediately following the confirmation of consent and eligibility for the child to participate. Initial baseline data …


Majority And Minority Supervisees' Perceptions Of Clinical Supervision, Vivian Barnette Dec 1999

Majority And Minority Supervisees' Perceptions Of Clinical Supervision, Vivian Barnette

Dissertations

Perceptions of clinical supervision of 175 majority and minority counseling psychology doctoral students selected from a national pool was the study’s focal point. Instruments used were the Revised Relational Inventory (RRI; Barrett- Lennard, 1962; Schacht, Howe, & Berman, 1988) and the Supervision Perception Form-Trainee (SPF-T) developed by Heppner and Roehlke (1984). Participants were instructed to based their ratings on their last supervision experience. Data were collected and scored on the five subscales o f the RRI (Congruence, Empathetic Understanding, Regard, Unconditionality, and Willingness to be Known) and the two subscales of the SPF-T (Willingness to Learn and Supervisory Impact).

A …


Cognitive Components Of Social Anxiety: A Comparison Of Elderly And Young Adults, Jeffrey Alan Mcneil Dec 1999

Cognitive Components Of Social Anxiety: A Comparison Of Elderly And Young Adults, Jeffrey Alan Mcneil

Dissertations

The present study investigated the underlying cognitive elements of social anxiety in elderly and young adult samples. The young adult participants in this study were 99 undergraduate students from a Midwestern university, recruited through scheduled undergraduate classes from both the Communication and Education Departments. Fifty elderly participants from two independent living senior residence centers were recruited through organizational meetings and contacts coordinated through the housing director or the wellness director. One senior residential center was located in the Midwest, while the other was in the Southeast. The study employed well recognized self-report cognitive measures to assess social anxiety: the Fear …


Behavior-Based Safety And Working Alone: The Effects Of Self-Monitoring On The Safe Performance Of Bus Operators, Ryan Olson Aug 1999

Behavior-Based Safety And Working Alone: The Effects Of Self-Monitoring On The Safe Performance Of Bus Operators, Ryan Olson

Masters Theses

Experimental evaluations of Behavior-based Safety (BBS) processes applied with lone workers are scarce. Further research is needed to determine the power of self-monitoring based interventions for improving safe behavior, and to explore the best practices for improving safety when employees work alone. In the current study,· four male bus operators (ages 40-50) self-monitored their safe performance and initialed feedback graphs based on their self-monitoring data at the end of each day. Experimental data collectors observed each participant by riding buses as passengers. A multiple baseline design across performances was used to assess the effects of the intervention on four target …


Mdma And Learning: Effects Of Acute And Neurotoxic Exposure, Thomas P. Byrne Aug 1998

Mdma And Learning: Effects Of Acute And Neurotoxic Exposure, Thomas P. Byrne

Dissertations

In two experiments, the effects of MDMA were examined on the acquisition of lever-press responding by rats exposed to procedures in which water delivery was delayed by 0, 10, or 20 seconds. In the first experiment, naive, water-deprived rats received an intraperitoneal injection of MDMA (0, 1.0, 3.2, or 5.6 mg/kg) prior to one experimental session. Response acquisition was observed under all conditions at all drug doses. MDMA increased both response rates and reinforcers earned in a dose-dependent fashion, but only when reinforcement was immediate. Under conditions of delay, MDMA had no effect on the number of lever presses emitted …


A Computer/Tutorial System Compared With A Workbook/Tutorial System For Presenting Instructional Material To At-Risk Elementary School Students, Vincent O. Hodge Aug 1998

A Computer/Tutorial System Compared With A Workbook/Tutorial System For Presenting Instructional Material To At-Risk Elementary School Students, Vincent O. Hodge

Dissertations

Two different ways of presenting instructional material and reacting to students’ responses were compared. One, taking advantage of several features of multimedia instruction involved a desktop computer and various computer-presented consequences of correct and incorrect responses (largely chosen by the student). The other consisted in presenting the same instructional materials (the SRA primary curriculum) in a workbook form with tutors' comments and praise as the main form of response consequence. The two methods were compared with respect to various measures of student and system performance, including student accuracy (percent correct responses), types of errors, amount of correct response repetition (over-responding), …


Disruption Of The Discriminative Stimulus Effects Of (+)-3, 4-Methylenedioxymethamphetamine (Mdma) By (± )-Mdma Neurotoxicity: Protection By Fluoxetine, Thomas B. Virden Iii Jun 1998

Disruption Of The Discriminative Stimulus Effects Of (+)-3, 4-Methylenedioxymethamphetamine (Mdma) By (± )-Mdma Neurotoxicity: Protection By Fluoxetine, Thomas B. Virden Iii

Dissertations

It is well established that repeated, high doses of 3, 4-methylenedioxymethamphetamine (MDMA) result in the long-term depletion of serotonin levels and destruction of serotonergic terminals in various locations in the brains of a variety of species. Further, it is also well known that concomitant injections of the serotonin reuptake inhibitor, fluoxetine, prevents this deterioration. It has recently been noted that such MDMA neurotoxicity disrupts stimulus control in rats trained to discriminate MDMA from saline in a drug discrimination procedure (Schechter, 1991a).

In order to extend Schechter's findings to the optical isomers of MDMA and to explore the potential of fluoxetine …


Differences In Perceptual And Subjective Body Image Between Weight Cycling And Noncycling Graduate Students, Karen Casebeer Dec 1997

Differences In Perceptual And Subjective Body Image Between Weight Cycling And Noncycling Graduate Students, Karen Casebeer

Dissertations

This research began as an exploratory investigation into body image differences between individuals who were weight cyclers and those who were noncyclers. Participants were fem ale and m ale graduate students (n= 444) who completed the Multidimensional Body-Self Relations Questionnaire (Cash, 1990a), the Contour Drawing Rating Scale (M.A. Thompson & Gray, 1995), and the Weight History Questionnaire (W H Q ), a researcher developed self-report survey of weight, dieting, and demographic information. Data gathered from the WHQ were used to identify pairs of individuals who were matched on cycling status, gender, age, and body mass index. Fifteen such pairs were …


An Assessment Of Generalization Across Settings Of A Parenting Strategies Program For Adhd Children, Barbara M. Todd-Nelson Dec 1997

An Assessment Of Generalization Across Settings Of A Parenting Strategies Program For Adhd Children, Barbara M. Todd-Nelson

Dissertations

When collapsed across gender and subject pools, Attention-Deficit/ Hyperactivity Disorder (ADHD) affects three to five percent of school-aged children (DSMIV, 1994). Intervening upon environmental contingencies for ADHD-diagnosed children is one of the least intrusive forms of treatment and is often very effective (Atkeson & Forehand, 1978; Forehand & King, 1977; Barkley, 1986; Webster-Stratton, 1993). As noted by many researchers (Allen, Tamowski, Simonian, Elliott & Drabman, 1991; Drabman, Hammer, & Rosenbaum,1979; Stokes & Osnes, 1989), it is necessary to assess generalization of treatment effects across the behavior therapy literature. Few have examined generalization from the home setting to the classroom. Since …


Programmed Instruction: Within-Subject Analysis Of Four Types Of Instructional Material, Matthew L. Miller Dec 1997

Programmed Instruction: Within-Subject Analysis Of Four Types Of Instructional Material, Matthew L. Miller

Dissertations

Skinner (1958) expressed the need for an increase in the effectiveness and efficiency of education. In particular, he suggested that programmed instruction could provide such efficiency. The present study used a within-subject design to compare the effects of four types of instructional materials: those requiring overt construction responses, overt discrimination responses, covert reading of text with highlighted key words, and covert reading of standard text. The material requiring overt responding produced greater learning than did the covert reading materials, with or without highlighting. There was no difference found between the two types of overt responding; nor were there differences between …


Effects Of Linear And Non-Linear Incentive Pay Systems With Individual And Group Payouts On The Social Psychology Phenomenon Of Social Loafing, Delores A. Tinley Smoot Aug 1997

Effects Of Linear And Non-Linear Incentive Pay Systems With Individual And Group Payouts On The Social Psychology Phenomenon Of Social Loafing, Delores A. Tinley Smoot

Dissertations

The purpose of the present study was twofold. First, the experiment investigated the occurrence of social loafing behavior when individuals are engaged in a production task. Social loafing is defined as a decrement in individual performance when working co-actively with a group. Second, the experiment compared the effectiveness of three incentive pay systems (linear, positively and negatively accelerating) in eliminating social loafing behavior and in generating performance levels higher than those generated by a flat or hourly pay system.

Sixteen undergraduate students, all female, participated in twenty-five 15- minute work sessions in which they made widgets from pop beads. Subjects …


Human Impulsivity: Effects Of Reinforcement Procedure, Catherine A. Karas Aug 1997

Human Impulsivity: Effects Of Reinforcement Procedure, Catherine A. Karas

Dissertations

In this study, positive and negative reinforcement procedures were directly compared across subjects to determine whether more impulsive responding would occur with one reinforcement procedure when compared to the other, under a discrete-trial choice procedure. For both reinforcement procedures, taped music served as the reinforcer. For the positive reinforcer, subjects brought in their own music, from which tapes were made for use in the study. Subjects then ranked the tapes according to their preferences. For the negative reinforcers, the investigators made tapes of various types of music, and all subjects ranked their preferences for these tapes. Subjects were then presented …


The Role Of Alcohol And Stress On Measures Of Depression And Anxiety Among College Students, Jeffrey F. Porter Aug 1997

The Role Of Alcohol And Stress On Measures Of Depression And Anxiety Among College Students, Jeffrey F. Porter

Masters Theses

In clinical literature regarding the effects of regular alcohol use, psychological benefits of moderate consumption have been suggested (Neff & Husaini, 1982; Neff, 1984; Neff & Husaini, 1985; Neff, 1985; Neff, 1986; Neff, 1993, Lipton, 1994). Despite the diverse groups with which this theory has been examined, no published studies have lookeq specifically at the high-risk group of college undergraduates. Subjects were surveyed to assess their typical drinking behavior, the number of stressful events they had experienced within the past 12 months, their perceived social support, and depressive and anxiety symptoms they experienced within the seven days leading up to …


The Efficacy Of Pediatric Pain Management Techniques For Infants During Inoculation Procedures, Kimberly K. Wisdorf-Houtkooper Jun 1997

The Efficacy Of Pediatric Pain Management Techniques For Infants During Inoculation Procedures, Kimberly K. Wisdorf-Houtkooper

Dissertations

In this study four different pre-immunization interventions were compared with respect to their effects on modifying arousal level before an immunization and their effects on the level and duration of distress after the immunization. In addition, the study evaluated whether the infants’ pre-inoculation behavioral state affected their response to a painful stimulus. Data consisting of facial expression, presence or absence of cry, cry duration, and behavioral state were collected prior to, during, and after the inoculation. Forty-two subjects were randomly assigned to one of four soothing conditions. These included: rocking, swaddling, sucking on a pacifier, and a control group.

An …


Do Reinforcer Surveys Enhance A Brief Parenting Skills Program For Attention-Deficit/Hyperactivity Disordered Children?, Maria A. Channell Jun 1997

Do Reinforcer Surveys Enhance A Brief Parenting Skills Program For Attention-Deficit/Hyperactivity Disordered Children?, Maria A. Channell

Dissertations

Several clinical researchers have documented the benefits of evaluating reinforcer preference prior to the implementation of behavioral parent training programs. However, this has not been specifically tested with Attention- Deficit/Hyperactivity Disordered (ADHD) population in relation to parent training. This between groups study investigated whether systematically altering parent delivered reinforcers to match children’s preferred reinforcers would result in an even greater increased compliance and decreased noncompliance.

One group received a brief (4-6 session) parenting program based on Patterson’s (1974) model. A second group received the same program with an added component wherein the child completed a reinforcer survey prior to the …


Effects Of Alternative Activities On Productivity Under Different Percentages Of Incentive Pay, Grainne A. Matthews Jun 1997

Effects Of Alternative Activities On Productivity Under Different Percentages Of Incentive Pay, Grainne A. Matthews

Dissertations

This study examined whether low percentages of incentive pay would be as effective as high percentages in maintaining work performance in the presence of competitive alternative activities. Incentives may increase performance primarily by decreasing time spent performing alternative activities. Although the link between performance and pay is tighter when the percentage of incentive pay is higher, laboratory studies have not found the expected difference. It is possible that previous simulations of work settings have not offered realistic competing contingencies. This study used a computer simulation of a quality inspection task and provided computer games as alternative activities to participants who …


The Mmpi-A: A Diagnostic Tool For Adhd Adolescents, Harry J. Marshall Dec 1996

The Mmpi-A: A Diagnostic Tool For Adhd Adolescents, Harry J. Marshall

Dissertations

This research investigated the utility of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) as an instrument in the diagnosis of adolescents with Attention Deficit Hyperactivity Disorder (ADHD). Subjects were 32 male and 12 female adolescents between the ages of 14 and 18 who presented for evaluation and/or treatment for ADHD in one of three privately operated mental health clinics in a large, industrial, midwestem state. Upon establishment of the diagnosis by a psychologist who specializes in the area of ADHD, the subjects were invited to participate in the study and complete the MMPI-A. A correlational research design was used which compared …


The Relationships Among Expectancy, Hypnotizability, And Treatment Outcome Associated With Eye Movement Desensitization In The Treatment Of Post-Traumatic Stress Disorder, Lisa Kimberly Largo-Marsh Jun 1996

The Relationships Among Expectancy, Hypnotizability, And Treatment Outcome Associated With Eye Movement Desensitization In The Treatment Of Post-Traumatic Stress Disorder, Lisa Kimberly Largo-Marsh

Dissertations

A pre-test, post-test comparison group design was utilized to assess the effectiveness of two interventions on symptoms associated with Post-Traumatic Stress Disorder. Subjects were randomly assigned to one of two treatments: Eye Movement Desensitization and Reprocessing (EMDR) or structured writing sessions. A standardized diagnostic interview was used to screen subjects and provide diagnosis and symptom profile at intake and one-month follow-up. Standardized self-report measures were used to assess treatment outcomes. Repeated measures ANOVA revealed no significant differences between the two treatments. Both treatments were effective in significantly reducing post-traumatic symptoms at post-test and follow-up, although slightly different patterns were evident. …


Perinatal Loss: An Exposure Based Approach To Alleviating Feelings Of Grief In Bereaved Parents, Michele Lee Rosa Apr 1996

Perinatal Loss: An Exposure Based Approach To Alleviating Feelings Of Grief In Bereaved Parents, Michele Lee Rosa

Dissertations

The efficacy of exposing bereaved parents to stimuli associated with their deceased child as a means of alleviating their grief reaction was explored. Three parents who had suffered a perinatal loss participated. Pre, post, and follow-up measures of depression, hopelessness, anxiety, marital functioning, daily stress, psychopathology, bereavement and grief were gathered.

Results showed clinically significant improvement for two of the three subjects on measures of depression and psychopathology. All subjects showed improved marital functioning. Negative change was seen on a measure of hopelessness for two of the three subjects. The treatment effects for symptoms of stress, anxiety, bereavement and grief …


The Discriminative Stimulus Properties Of Morphine And U-50,488h In A Three-Key Assay: A Mu And Kappa Opioid Discrimination In The Pigeon, Malath Makhay Apr 1996

The Discriminative Stimulus Properties Of Morphine And U-50,488h In A Three-Key Assay: A Mu And Kappa Opioid Discrimination In The Pigeon, Malath Makhay

Dissertations

Opiate drugs have been classified in two-choice assays according to their ability to produce generalization in animals to the prototypicix opiate, morphine, versus vehicle, or to the k opioid, U -50,488H versus vehicle injections (Picker & Dykstra, 1987). A three-choice discrimination procedure, in which subjects discriminate among morphine, U -50,488H , and vehicle injections, might afford a greater degree of precision in characterizing the subjective effects of opioids. The feasibility of such a procedure was demonstrated in the present study, in which five pigeons were trained to discriminate among injections of 5 .6 m g/kg morphinel 5 .6 m g/kg …


Effects Of D-Amphetamine On Free-Operant Response Acquisition With Immediate And Delayed Reinforcement, Mark G. Lesage Apr 1996

Effects Of D-Amphetamine On Free-Operant Response Acquisition With Immediate And Delayed Reinforcement, Mark G. Lesage

Dissertations

The present study examined in 8-hour sessions the effects of d-amphetamine (1.0, 5.6, and 10 mg/kg) on the acquisition of lever-press responding by rats exposed to procedures in which water delivery was delayed by 0, 8, or 16 seconds relative to the response that produced it. Although neither shaping nor autoshaping occurred, substantial levels of operative-lever responding developed whenever responses produced water. Rats that did not receive water and yoked-control rats that received response-independent water emitted relatively few responses.

The lowest dose (1.0 mg/kg) of d-amphetamine either had no effect on or enhanced rates of operative-lever pressing, whereas …


The Treatment Utility Of The Therapeutic Reactance Scale In Relation To Single Session Hypnosis For Smoking Cessation, Gregory N. Vaughan Apr 1995

The Treatment Utility Of The Therapeutic Reactance Scale In Relation To Single Session Hypnosis For Smoking Cessation, Gregory N. Vaughan

Dissertations

This study examined the efficacy of three different hypnotic suggestion scripts each delivered in a single session of hypnosis for smoking cessation as mediated by reactance scores on the Therapeutic Reactance Scale (TRS) (Dowd, Milne, & Wise, 1991). Consecutive clinical trials were used to assign 48 subjects to treatment groups such that an equal number of subjects received: (1) direct suggestions, (2) suggestions that refrained the problem, (3) suggestions not specifically related to smoking cessation, and (4) a delayed treatment waiting list. Each subject rated the believability of treatment efficacy on a Likert type scale.

Four categories of the dependent …


Effects Of Caffeine Consumption On Cardiovascular Indices, Attention, Task Performance, And Memory Retention In Children, Suzanne L. Keller Dec 1994

Effects Of Caffeine Consumption On Cardiovascular Indices, Attention, Task Performance, And Memory Retention In Children, Suzanne L. Keller

Dissertations

Caffeine is one of the most commonly used drugs in the western world today. Average intake of caffeine in the United States has been estimated at greater than 200 mg daily per person. Although plagued by inconsistencies, and methodological problems, research suggests that this level of caffeine ingestion may have significant effects on cardiovascular functioning, and behavioral processes such as attention, cognitive processing, memory, and task performance.

Although children consume significant quantities of caffeine, very little research has been done on the effects of caffeine in children. The limited findings suggest that caffeine consumption may affect the cognitive and behavioral …