MCHES common mistakes
MCHES · Understand the traps and how to avoid them.
When an item asks for the next step in program design, the candidate selects a plausible-sounding activity (form a coalition, write objectives, secure funding) based on what their own program did, rather than the step that follows the one named in the stem.
Real-world practice compresses and parallelizes planning steps, and every option in these items typically describes something that is genuinely good practice, so nothing looks obviously wrong.
What to do instead
Memorize the canonical sequence (assess needs and capacity → prioritize → write goals and measurable objectives → select theory and evidence-based strategy → design → implement → evaluate) and for any 'next step' item first eliminate options belonging to a later phase; then confirm the step named in the stem is already complete before choosing.
Chooses a data-collection method (survey, focus group, key-informant interview, secondary data, observation) by personal habit rather than by the constraint written into the stem - generalizability, depth of understanding, reading level, cost, or speed.
Candidates trained in one method scan the stem for the health topic and the population and never isolate the constraint word that the item is actually testing.
What to do instead
Before reading the options, extract the constraint keyword and match it to the method property: generalizable to a population = probability-sample survey; depth and 'why' = qualitative interview or focus group; group norms = focus group; low literacy or hard-to-reach = interview, photovoice, or observation; fast and inexpensive = existing/secondary data.
Swaps constructs across behavior-change theories when asked which construct a message or activity addresses - self-efficacy with perceived behavioral control, cues to action with enabling factors, or the wrong stage with decisional balance.
The constructs overlap heavily in plain language (confidence, control, barriers, support) and are usually learned through similar-sounding vignettes, so the labels blur under time pressure.
What to do instead
Build a three-column card set for HBM, TTM, SCT, and TPB (construct → one-line definition → one distinctive example) plus PRECEDE-PROCEED's predisposing/enabling/reinforcing factors; then match the behavior described in the stem to your example, not to the label that merely sounds familiar.
Mislabels the type of evaluation - calls monitoring reach, dose, and fidelity during delivery a 'summative' evaluation, or labels a change in knowledge or behavior an 'outcome' rather than an impact.
In practice the word 'evaluation' is used loosely and pilot testing is routinely called an outcome evaluation, so everyday usage contradicts the technical definitions the exam uses.
What to do instead
Anchor on timing and unit of measurement: before or during design = formative; during delivery = process (reach, dose delivered, fidelity); immediately after = impact (knowledge, attitudes, skills, behavior change); longer term = outcome (health status, quality of life).
Ranks evidence by how recent, familiar, or topic-relevant a source is rather than by design - picking a single cohort study or an expert panel over a systematic review, or blaming the program for a change that the stem shows also occurred in the comparison group.
Candidates read research items for content credibility instead of design quality, and threats to validity are usually learned abstractly and never practiced against vignettes.
What to do instead
Apply the hierarchy explicitly (systematic review or meta-analysis > randomized controlled trial > quasi-experimental > cohort > case-control > cross-sectional > expert opinion), and for validity items name the specific threat - history, maturation, testing, instrumentation, selection, attrition - after checking whether a comparison or control group is described.
Selects 'lobby the legislature' or 'endorse a candidate' as the health education specialist's advocacy action, or recommends an advocacy campaign without considering whether the agency receives federal funds.
Advocacy and lobbying are used as synonyms in public discourse, so direct political pressure feels like the strongest, most committed answer.
What to do instead
Hold the distinction firmly: lobbying is attempting to influence specific legislation; advocacy is broader and includes educating decision-makers, mobilizing data, building coalitions, and media work, with testimony given as a private citizen. Federally funded programs cannot lobby. When a stem says 'advocate,' prefer options that educate and mobilize rather than options that pressure a vote.
Skips the procedural first step - consulting the Code of Ethics, a supervisor, or an IRB or ethics committee - and jumps to a dramatic action such as immediately reporting a colleague, unilaterally shutting down a program, or doing nothing to avoid conflict.
The harm described in the vignette is salient and emotionally pulls the candidate toward immediate action, while the correct answer is usually the least dramatic, most procedural option.
What to do instead
Answer the exact question asked - often 'what should be done first' or 'next'. For a dilemma, the defensible first step is to consult the Code of Ethics, a supervisor, or the reviewing body; then choose the action that discloses the least information and restricts the fewest people while still protecting participants. Reserve mandated reporting for the narrow legal situations the Code and law specify.
Confuses the economic analyses - calls a cost-per-quality-adjusted-life-year study a cost-benefit analysis, reports cost per participant as cost-effectiveness - and submits budgets that omit indirect or overhead costs.
The terms are used interchangeably in grant narratives and program reports, and indirect costs are invisible when candidates have only handled small program budgets.
What to do instead
Memorize the unit of the ratio: cost-benefit = all costs and all outcomes in dollars; cost-effectiveness = dollars per natural outcome unit (per quit, per case prevented); cost-utility = dollars per quality-adjusted life-year; cost-minimization = comparison of options with equal outcomes. In budget items, check separately for direct versus indirect costs and personnel versus non-personnel categories.
Answers leadership vignettes with 'take charge and make the decision' or personality-trait options, and cannot separate leadership from management when the stem describes a manager focused on budgets, staffing, and control.
Popular culture frames leadership as decisiveness and charisma, and the two functions are performed by the same person in most small health agencies.
What to do instead
Match the stem's cues to the named approach: shared vision, individualized consideration, empowerment, and change = transformational; contingent reward and management-by-exception = transactional; adjusting style to follower readiness = situational; directing, monitoring, budgeting, and staffing = management, not leadership.
Treats adaptation as always permissible - rewrites the core components of an evidence-based program to fit a new population without identifying what must stay intact - or, conversely, insists on exact replication when the stem describes a real cultural or linguistic mismatch.
Fidelity and adaptation are taught as a tension without a decision rule, so candidates pick whichever value their training emphasized.
What to do instead
Separate core components (the program's logic, dose, sequence, and theory-based methods) from peripheral elements (language, examples, imagery, setting, delivery channel). Adapt the peripheral elements, preserve the core, and use a planned adaptation process with pilot testing; if the stem states that core components cannot be delivered, choose redesign or a different evidence-based program over forced fidelity.