What Is Evidence-Based Practice?
“Evidence-based practice (EBP) aims to maximize the effectiveness of psychological interventions through adherence to principles informed by empirical findings, clinical expertise, and client characteristics” (Evidence-based practice, 2020, para. 1).
For psychotherapists, it encourages using the best research-led evidence to make informed decisions about the care of clients in treatment. More recently, the approach has been expanded to include the patient’s preferences, actions, and environment (Cook et al., 2017).
The American Psychological Association (2021, para. 2) defines evidence-based practice in psychotherapy as “the integration of the best available research with clinical expertise in the context of patient characteristics, culture, and preferences.”
The clinical implications of using EBP in psychotherapy include (American Psychological Association, 2021):
Relying on collaborative decision-making with the patient based on the best clinically relevant evidence
Considering probable costs, benefits, and available resources
Using the treating therapist’s professional judgment
Actively encouraging informed patient participation
Individualizing treatment beyond existing research
Ongoingly monitoring patient progress and readjusting treatment as needed
Subsequent research has shown evidence-based psychotherapy to be a practical and financially viable approach for treating various psychiatric conditions (Cook et al., 2017).
The Challenges of Evidence-based Therapy
While EBT has many advantages, it has been challenged regarding its (Cook et al., 2017):
Generalizability of research data and study findings
Focus on making issues and problems less harmful rather than increasing meaning in clients’ lives
Reliance on (sometimes) insufficient data to make an evidence-based decision in specific circumstances
Ignorance of other clinical tools
And finally, it may be difficult and time consuming for professionals to maintain up-to-date knowledge to ensure clients receive the most appropriate psychotherapy (Cook et al., 2017).
The Goals & Benefits of Evidence-Based Therapy
“Ultimately, the goal of EBP is the promotion and implementation of psychotherapies that are safe, consistent, and cost-effective” (Cook et al., 2017, p. 539).
This can be accomplished through a focus on
Improved care quality for clients
Increased accountability of the health care professional
Enhancement of the health and wellbeing of the public
The approach encourages professionals to keep up to date with the latest research findings and discourages a diminishing quality of care.
There are many advantages and benefits for patients, therapists, and clinical teams, including (Cook et al., 2017):
Therapists’ decisions are research led rather than solely relying on personal opinion, thereby reducing bias.
EBP complements rather than replaces clinical expertise when making judgments.
Reliance on research data promotes the creation of appropriate policies, databases, and clinical tools to make informed decisions.
EBT combines scientific data and patient factors, such as situational information, cost, and time.
The approach ensures that the best evidence becomes the starting point for complex treatment plans.
EBT enhances the professional therapists’ skills, knowledge, and attitudes.
Examples of Interventions Used in Evidence-Based Therapy
According to EBT, therapists should use the best available evidence to provide appropriate treatment, maximizing the likelihood of a positive treatment outcome (Canadian Psychological Association, 2012).
They should also monitor clients’ reactions to treatment, tailoring the therapeutic interventions accordingly and “adjusting the content, sequencing, timing, or pacing of treatment elements” as appropriate (Canadian Psychological Association, 2012, p. 10).
The following examples of therapeutic interventions are evidence led, research driven, and consider the client’s needs and situation.
Cognitive Therapy
Cognitive Therapy (or cognitive restructering) focuses on identifying and changing unhealthy and distorted patterns of thinking that contribute to negative emotions and behaviors. Combined with Behavior Therapy, it forms the foundation of Cognitive-Behavioral Therapy (Beck, 2011; Stallard, 2022).
Cognitive Therapy-based interventions for children, adolescents, and adults as individuals and families have been well validated, including in the following areas (Stallard, 2022; Koster et al., 2017).
Psychoeducation
Explaining the goals and processes behind Cognitive Therapy can help clients examine their responses to triggers that produce negative thinking. With psychoeducation, clients are encouraged to self-monitor their thoughts and feelings and identify short and long-term goals (Canadian Psychological Association, 2012).Cognitive control training
Improving cognitive control processes can enhance cognitive flexibility and emotional and attentional control, and reduce maladaptive patterns of thinking and behavior associated with mental health problems (Koster et al., 2017).
The Stroop task is an example of cognitive control training. It involves saying the color of words while ignoring what the words actually say, which can be challenging because of the interference between automatic reading and controlled processing.
Cognitive restructuring interventions
Cognitive restructuring and cognitive change interventions (challenging and modifying negative or distorted thoughts) have been shown to improve mental health conditions, including depression (Lorenzo-Luaces et al., 2015).
Behavior Therapy
Behavior Therapy eliminates and changes “ineffective or maladaptive patterns of behavior” (American Psychological Association, n.d., para. 1).
There is limited recent research into Behavior Therapy as it now, in combination with cognitive therapy, forms the foundation of CBT, which receives considerable attention.
Behavioral activation
Behavioral activation is a powerful approach for overcoming depression.
When a person is depressed, they often experience decreased motivation and withdraw from activities they once enjoyed (Lorenzo-Luaces et al., 2015).
Behavioral activation involves the client monitoring daily activities, noting their enjoyment, and then scheduling activities that align with their values and interests (Lorenzo-Luaces et al., 2015).
Token economy
This has been proven successful at reducing unwelcome classroom behavior.
It involves using tokens or points as rewards that can be exchanged for items or privileges to reinforce desired behavior (Reitman et al., 2004).
Family therapy
Family Therapy helps family members improve communication, support one another, and resolve conflicts (Carr, 2014).
Family therapy interventions are effective at addressing “relationship distress, psychosexual problems, intimate partner violence, anxiety disorders, mood
disorders, alcohol problems, schizophrenia, and adjustment to chronic physical illness” (Carr, 2014, p. 158).
Sample family therapy interventions include:
The miracle question
The miracle question involves asking family members to imagine a possible world where problems have gone away or have been solved. This prompting has proven to be an effective intervention for contrasting successful therapeutic outcomes and encouraging the clients to work toward shared goals (Yu, 2019).Genograms
Mapping the relationships between family members has proven helpful in identifying behavioral patterns within the past and present and encouraging the resolution of emotional issues (Goldenberg, 2017).
Evidence-Based Therapy for Depression and Anxiety
Evidence-based therapy has been shown to have a positive effect on treating clients with depression and anxiety and can have multiple forms.
Cognitive-Behavioral Therapy
CBT is like Cognitive Therapy (CT) and shares the same core theory. However, they are not identical. CBT encompasses CT but focuses on achieving behavioral change through changing incorrect and unhelpful thinking using the relationship between thinking and behavior (Beck, 2019; Beck & Fleming, 2021).
“Cognitive–Behavioral Therapy (CBT) is a practical, goal-focused approach that helps children understand the relationship between their thoughts, feelings and behaviors” (Stallard, 2022, p. 109).
Anxiety and depression are linked to unhelpful cognitive patterns and can benefit from challenging such biased and distorted thinking with interventions such as the following (Stallard, 2022; Canadian Psychological Association, 2012; Beck, 2011).
Thought and feeling diaries can identify dominant thinking traps, such as “mind reading” (the tendency to make assumptions or believe we know what others are thinking) and “all-or-nothing” thinking (perceiving events and situations in extremely polarized terms). Identifying such cognitive distortions can help manage and avoid them in the future.
Setting small targets and goals can be helpful when experiencing social anxiety. Therapists and clients work together to set small targets, such as reengaging with friends and attending small social gatherings. Over time, the small steps build into more significant behavioral changes that can help overcome anxiety.
While there is considerable evidence for the effectiveness of face-to-face CBT interventions in treating anxiety and depression, increasing research proves its value when delivered digitally (Stallard, 2022).
Mindfulness-Based Cognitive Therapy
Mindfulness-Based Cognitive Therapy (MBCT) is a branch of Cognitive Therapy that has successfully treated depression and anxiety and received clinical and research-based support (Canadian Psychological Association, 2012).
MBCT “was developed as a targeted approach for people who have a history of depression and are therefore vulnerable to future episodes” (Crane, 2009, p. 3). Practicing mindfulness helps clients bring body sensations, emotions, and thoughts to their attention and respond better to early indicators of a relapse (Crane, 2009; Canadian Psychological Association, 2012).
Further research confirms that “emotional management skills such as relaxation training, mindfulness, positive imagery or activity rescheduling may be developed to reduce the intensity or frequency of these unpleasant emotions” (Stallard, 2022, p. 109).
Dunning et al. (2019, p. 248) found that “participants receiving an MBI [mindfulness-based intervention] improved significantly more than those receiving the control conditions.”
Evidence-led MBCT practices include interventions such as the following (Crane, 2009; Stallard, 2022; Dunning et al., 2019):
Body scan practice
Clients are guided to attend to all regions of the body, starting with the toes and then moving up to the head. The individual is encouraged to connect with the direct experience of physical sensations of the body and breathing.
“The body scan helps us learn to aim and sustain the attention where we want it, and to deliberately engage and disengage as we move attention through the body” (Crane, 2009, p. 112).
Sitting meditation
Once seated and comfortable, clients are encouraged to remain relaxed yet alert while “developing the ability to be with experience within the body” (Crane, 2009, p. 121).
The therapist brings their attention to different aspects of the experience, including the movement of breath, body sensations, and emotions, and bringing to mind an existing difficulty.
Mindful movement
Mindfulness doesn’t always mean remaining static. In mindful movement, the client is prompted to become more present with bodily experience in motion.
The participant is guided to move and stretch, choosing when to hold or move more deeply.
Research continues to find favorable evidence for the beneficial effects of mindfulness interventions for managing depression, anxiety, and stress (Dunning et al., 2019).
Psychotherapy
Psychotherapy, such as Interpersonal Therapy and Brief Psychodynamic Therapy, effectively treats depression and anxiety (Canadian Psychological Association, 2012).
“A sizeable body of evidence drawn from a variety of research designs and methodologies attests to the effectiveness of psychological practices” (American Psychological Association, 2021, para. 2).
For psychotherapy to be evidence-based and ethical, interventions must be grounded in the data rather than the personal opinion of the therapist while considering and maximizing client choice (Cook et al. 2017).
A small sample of evidence-based therapies for treating anxiety and depression (excluding those already mentioned under CBT and MBCT) include what are sometimes referred to as third-wave CBT, such as the following:
Acceptance and Commitment Therapy (ACT)
ACT has been shown to reduce anxiety and depression while increasing quality of life (Forsyth & Eifert, 2016).
Rather than directly addressing negative emotions and thought patterns, it focuses on learning skills that cultivate a kinder, gentler relationship with clients’ anxious bodies and minds (Forsyth & Eifert, 2016).
Typical evidence-based interventions include the following (Forsyth & Eifert, 2016):
Finding values – Identifying what matters to the client and what they want their life to be about can positively impact wellbeing and help manage anxiety and depression.
Mindful acceptance – Accepting negative emotions can help clients regain control of their lives. Mindfulness practices do not attempt to manage, avoid, or change negative feelings, but recognize and accept them.