ID06180011_SF1449_Solicitation_Attach_1_PWS_Psychometrics_08152018.pdf

Solicitation ID06180011 Attachment 01

Performance Work Statement

Language Proficiency Assessment Directorate, DLIFLC

DLPT5 Psychometric Analysis and Reporting Contract August 15, 2018

C.1. INTRODUCTION

The fifth generation of Defense Language Proficiency Tests (DLPT) assesses the global foreign language reading and listening proficiency of US military and civilian government personnel.

Ongoing analysis, documentation and psychometric monitoring of each generation of DLPT is critical to the reliability, fairness and validity of inferences made using examinee performance on DLPTs. This contract procures specific psychometric analyses to eliminate a significant backlog in statistical workload in support of the continued reliability, fairness and validity of the DLPT program.

C.2. BACKGROUND

The DLPT5 is designed for native speakers of English who have learned a foreign language as a second language and native speakers of other languages with very strong English language skills.

The DLPT5 measures proficiency as defined by the Interagency Language Roundtable (ILR) skill level descriptions. DLPT5s are available as very low range tests targeting ILR levels 0+ to 1+, lower-range tests targeting ILR levels 0+ to 3, and upper-range tests targeting ILR levels 3 -

4. DLPT results are used to inform operational readiness, incentive pay, and assignment and training decisions for civilian and military personnel with language skills in the United States government.

C.3. SCOPE

During each annual period of performance (Base Period, Option Period I, and Option Period II), the Contractor shall: (a) conduct psychometric analyses of examinee responses to DLPT reading and listening comprehension test items for up to 14 Multiple Choice Test item pools (MCTs) and up to 10 Constructed Response Test item pools (CRTs), and; (b) conduct psychometric analyses of standard setting study panel recommendations for up to 14 MCT item pools and up to 4 CRT item pools.

Analysis of examinee response data for each item pool must be clearly documented in a comprehensive technical report. Contractors must submit each technical report within 30 days of the completion of analysis for each item pool. The report must include sufficiently detailed description of the methodologies employed and results such that DLIFLC may reasonably assess the reliability and validity of the results reported and re-conduct the analyses as necessary.

C.4. APPLICABLE DOCUMENTS

The Language Proficiency Assessment Directorate at the Defense Language Institute Foreign

Language Center (ATFL-LPAD) will not provide supplemental documentation as part of the solicitation. DLPT-related documentation including familiarization guides for potential examinees and a summary of Frequently Asked Questions (FAQ) are available online at https://www.dliflc.edu/resources/dlpt-guides/.

C.5. TECHNICAL REQUIREMENTS

C.5.1. Experts for Psychometric Analyses. Given the period of performance, and the volume of analyses and documentation required, the Contractor is advised to provide a sufficient number of psychometricians for successful and timely completion of this contract. The Contractor shall provide psychometric staff to conduct the necessary analyses with advanced knowledge, skills and abilities in the following:

(a) Statistical and psychometric methodologies related to educational and psychological testing in high-stakes environments.

(b) Modern (item response) and classical test theory.

(c) Standard-setting study methodologies (e.g., modified Angoff, Bookmark, etc.).

(d) Multiple-choice and constructed-response test development methods.

(e) The Standards of Educational and Psychological Testing.

(f) Specific knowledge of the Inter-Agency Language Roundtable (ILR) language skill level descriptions is desirable.

(g) Required Education and Experience - at least a Master's degree in Psychometrics; Statistics;

Mathematics/Engineering; Quantitative Psychology; Industrial/Organizational Psychology;

Educational Measurement; Computational Linguistics, or a closely related field.; plus three years of work related experience.

C.5.2 Key Personnel:

C.5.2.1 The following personnel are considered key personnel by the Government: Project Manager and Standard Setting Study Facilitators.

C.5.2.2 Project Manager: The Contractor shall provide a Project Manager who shall be responsible for the performance of the work. The name of this person and an alternate who shall act for the contractor when the manager is absent shall be designated in writing to the contracting officer. The project manager or alternate shall have full authority to act for the contractor on all contract matters relating to daily operation of this contract. The project manager or alternate shall be available during normal business hours, Monday thru Friday except Federal holidays or when the Government facility is closed for administrative reasons. Project Managers must have at least three years of experience managing requirements of similar scope and magnitude.

Familiarity with psychometrics is preferred. The Contractor shall submit documentation of the qualifications of the Project Manager(s) in its proposal for Government approval, which may include resumes and/or curriculum vitae.

C.5.2.3 Psychometricians: The Contractor shall identify at least two Psychometricians key personnel. C.5.1 lists Psychometrician qualifications. The Contractor shall submit documentation of the qualifications of the Psychometricians in its proposal for Government approval, which may include resumes and/or curriculum vitae.

C.5.2. Site of Psychometric Analyses

C.5.2.1. The analyses shall be conducted at the Contractors’ facilities.

C.5.2.2. The Contractor shall utilize the secure file transfer mechanism provided by the US Government (i.e., https://safe.amrdec.army.mil/safe/), only, to electronically exchange data and technical reports with US Government representatives.

C.5.3. Computer Software and Supplies

C.5.3.1. The Contractor shall provide all necessary statistical and office-automation software and supplies necessary to conduct and report analyses for each item pool.

C.5.3.2. A detailed description of the statistical software products used for each analysis will be submitted with each technical report.

C.5.4. Task One - Psychometric Analyses of Examinee Response Data

C.5.4.1. The Contractor shall conduct psychometric analyses of examinee responses to DLPT reading and listening comprehension test items for up to 14 Multiple Choice Test item pools (MCTs) and up to 10 Constructed Response Test item pools (CRTs) during each year; Base Period, Option Period I, and Option Period II.

C.5.4.2. Item pools to be analyzed include the following languages for each year; Base Period, Option Period I and Option Period II.

SKILL

MCT ITEM

POOL GENERATION SKILL

CRT ITEM

POOL GENERATION

LC Hebrew 5 LC Haitian Creole 5

RC Hebrew 5 RC Haitian Creole 5

LC Turkish 5 LC Arabic-Algerian 5

RC Turkish 5 LC Arabic-Yemeni 5

LC Serbian-Croatian 5 LC Arabic-Saudi 5

RC Serbian-Croatian 5 LC Somali 5

LC

Pushtu-Afghan (Pashto) 5 RC Somali 5

RC

Pushtu-Afghan (Pashto) 5 LC Albanian 5

LC Arabic-Egyptian 5 RC Albanian 5

LC Arabic-Iraqi 5 LC Azerbaijani (Azeri) 5

LC Korean 5 RC Azerbaijani (Azeri) 5

RC Korean 5 LC Greek 5

LC Spanish 5 RC Greek 5

RC Spanish 5 LC Kurdish- Kurmanji 5

LC German 5 RC Kurdish- Kurmanji 5

RC German 5 LC Kurdish-Sorani 5

LC Hindi 5 RC Kurdish-Sorani 5

RC Hindi 5 LC Norwegian 5

LC

Portuguese- European 5 RC Norwegian 5

RC

Portuguese- European 5 LC Punjabi 5

LC

Portuguese- Brazilian 5 RC Punjabi 5

LC Tagalog 5 LC Tausug 5

RC Tagalog 5 LC Uzbek 5

LC Chinese Cantonese 5 RC Uzbek 5

LC Urdu 5

RC Urdu 5

LC Indonesian 5

RC Indonesian 5

LC Czech IV

RC Czech IV

LC German IV

RC German IV

LC Italian IV

RC Italian IV

LC Polish IV

RC Polish IV

LC

Portuguese- Brazilian IV

RC

Portuguese- Brazilian IV

LC

Portuguese- European IV

RC

Portuguese- European IV

LC Tagalog IV

RC Tagalog IV

LC Thai IV

RC Thai IV

LC Ukrainian IV

RC Ukrainian IV

LC Vietnamese IV

RC Vietnamese IV

LC Romanian III

RC Romanian III

LC Burmese II

RC Burmese II

LC Cambodian II

RC Cambodian II

LC Chinese-Amoy II

RC Chinese-Amoy II

LC Chinese-Cantonese II

RC Chinese-Cantonese II

LC Dutch II

RC Dutch II

LC Hungarian II

RC Hungarian II

LC Indonesian II

RC Indonesian II

LC Lao II

RC Lao II

LC Swedish II

RC Swedish II

LC Bulgarian I

RC Bulgarian I

LC Danish I

RC Danish I

LC Icelandic I

RC Icelandic I

LC Lithuanian I

RC Lithuanian I

LC Slovenian I

RC Slovenian I

LC Swahili I

RC Swahili I

LC Yiddish I

RC Yiddish I

RC Amharic R

RC Hausa R

C.5.4.3. DLIFLC will specify and modify the delivery order of specific item pools to the Contractor as necessary. DLIFLC may substitute item pools not on the above list for item pools on the list as necessary.

C.5.4.4. Analysis of each item pool and technical report will include the following:

(a) Classical Test Theory analyses of test forms including:

i. Specifications, i.e., n-examinees, n-scored items, n-seeded (pre-test) items, n-domains.

ii. Summary Statistics, i.e., score (mean, standard deviation, median, minimum, maximum), mean p-value for scored items, seeded items, by domain, and all items combined.

iii. Reliability Statistics, i.e., Cronbach-α, SEM, split-half, Spearman-Brown for scored items, seeded items, by domain, and all items combined.

iv. Frequency distributions (tabular and graphical) of examinee raw scores for scored items, seeded items, by domain, and all items combined.

v. Scatterplots of p-value and point-biserial correlations scored items, seeded items, by domain, and all items combined.

vi. Parallel form reliability analyses, i.e., inter item correlations, intraclass correlation coefficient with 95% confidence intervals.

(b) Classical Test Theory analyses for all pool items including:

i. Specifications, i.e., unique identifier, location on test forms(s) domain, key, metadata.

ii. Item statistics, i.e., n-responses, n-omitted, p-value, domain specific biserial and point-biserial, total biserial and point biserial, Cronbach-α.

iii. Response option statistics, i.e., the following statistics for each response option: n-responses, p-value, domain specific biserial and point-biserial, total biserial and point biserial, key indicator.

iv. Quintile plot with flagged item key and quintile plot summary data table.

(c) Modern Test /Item Response Theory analyses including:

i. Assessment of dimensionality and IRT model fit.

ii. Item calibration specifications and calibration output; item parameter estimates and standard errors.

iii. Conditional standard errors of measurement.

iv. Graphical representation of test and item characteristic curves, information functions, and standard errors of measurement.

v. Assessment of parameter drift and differential item functioning (DIF) /subgroup analyses.

(d) Inter-rater reliability (CRTs Only)

i. Many-Facets Rasch assessment of inter-rater reliability and rater bias of human-scored constructed response test responses controlling for examinee ability and item difficulty.

C.5.5. Task Two - Psychometric Analyses of Standard Setting Study Panel Recommendations

C.5.5.1. The Contractor shall conduct psychometric analyses of standard setting study panel recommendations for up to 14 MCT item pools and up to 4 CRT item pools during each year;

Base Period, Option Period I and Option Period II.

C.5.5.2. Item pools to be analyzed include the following languages for each year; Base Period, Option Period I and Option Period II.

SKILL

MCT ITEM POOL

GENERATION SKILL

CRT ITEM

POOL GENERATION

LC Hebrew 5 LC Haitian Creole 5

RC Hebrew 5 RC Haitian Creole 5

LC Turkish 5 LC Arabic-Algerian 5

RC Turkish 5 LC Arabic-Yemeni 5

LC Serbian-Croatian 5 LC Arabic-Saudi 5

RC Serbian-Croatian 5 LC Somali 5

LC

Pushtu-Afghan (Pashto) 5 RC Somali 5

RC

Pushtu-Afghan (Pashto) 5

LC Arabic-Egyptian 5

LC Arabic-Iraqi 5

LC Korean 5

RC Korean 5

LC Spanish 5

RC Spanish 5

LC German 5

RC German 5

LC Hindi 5

RC Hindi 5

LC

Portuguese- European 5

RC

Portuguese- European 5

LC

Portuguese- Brazilian 5

LC Tagalog 5

RC Tagalog 5

LC Chinese Cantonese 5

LC Urdu 5

RC Urdu 5

LC Indonesian 5

RC Indonesian 5

C.5.5.3. DLIFLC will specify and modify the delivery order of specific item pools to the Contractor as necessary. DLIFLC may substitute item pools not on the above list for item pools on the list as necessary.

C.5.5.4. Analysis of each item pool and technical report will include the following:

(a) Many-Facets Rasch assessment of inter-panelist agreement and bias in panelist recommendations controlling for item difficulty.

(b) Statistical adjustment of panelist cut score recommendations using: (1) logistic smoothing and guessing adjustment heuristic, and; (2) Bayesian model-based approach.

(c) Impact assessment of each set of cut scores (mastery criterion, heuristic, model-based) on distribution of proficiency in test population.

C.6. DELIVERABLES

C.6.1. Post Award Conference: A meeting, by telephone, between the Government and the Contractor shall take place within seven to ten (7-10) working days of the award of the contract.

At the meeting, the two parties shall review contract deliverables, proposed milestones, and implementation issues. The contractor will deliver meeting minutes within three days of the meeting.

C.6.2. Miscellaneous Meetings: Additional meetings, by telephone, between the Government and the Contractor shall take place as needed to review contract deliverables, proposed milestones, and implementation issues.

C.6.3. Analyses Schedules: Contractor shall submit to DLIFLC for approval a detailed schedule for each set of analyses by language and skill at least 30 days before the scheduled start of analyses. The schedule shall include the names of the assigned psychometric experts for that analysis and their resumes if not previously designated as Key Personnel at C.5.2. Once approved by DLIFLC, Contractor shall follow schedule submitted. The Government will provide 30 days advance notice of each required analysis along with a projected schedule of analyses at the beginning of each annual period of performance.

C.6.4. Analyses Technical Reports: Analysis of examinee response data for each item pool must be clearly documented in a comprehensive technical report. Contractors must submit each technical report within 30 days of the completion of analysis for each item pool. The report must include sufficiently detailed description of the methodologies employed and results such that DLIFLC may reasonably assess the reliability and validity of the results reported and re-conduct the analyses as necessary.

C.6.5. Confidentiality Agreements: The Contractor shall submit Government provided confidentiality agreements for all personnel having contact with test material prior to working on the contract. The Contractor and its subcontractor personnel shall sign a confidentiality agreement to protect the security of all foreign language testing materials provided to the Contractor by the Government. This agreement shall include agreements signed by the Contractor and each subcontractor that the individual will not, directly nor indirectly, use, make available, sell, disclose, or otherwise communicate to any third party materials or services provided under this contract with the Government.

C.6.6. Test Inventories: The Contractor shall submit inventories of test material following Government specifications.

C.6.7. Test Materials: The Contractor shall return all test materials to the Government following the conclusion of each study and submit certification that all test material has been destroyed or transferred to DLIFLC within 15 days following the Government acceptance of technical report for each analysis. The certification shall include: 1) Statement that all paper and electronic copies of contract deliverables have been destroyed or transferred to the Government 2) signature of CEO, and 3) Corporate seal.

C.6.8. Contract Monthly Status Reports: The Contractor shall submit by the 10th of each following month, a report for the prior month listing all pertinent contract activities/deliverables accomplished, planned activities for the following month, issues encountered, and any other information pertinent to the contract.

C.6.9. Quality Control Plan: The contractor shall implement a quality control plan (QCP) at the beginning of the period of performance (POP) and maintain the plan throughout the POP. The initial plan shall be submitted to the Contracting Officer for review and approval no later than thirty (30) calendar days after contract award. All revisions shall be subject to written approval by the Contracting Officer, upon receipt of which the contractor shall document and record the plan number, distribute revised plans and communicate changes to affected contractor and

Government personnel. The contractor shall furnish all changes to the Contracting Officer and the appropriate Contracting Officer’s Representative (COR) at least three (3) working days prior to the effective date of the change.

The contractor’s QCP shall establish performance indicators to ensure deliverables are within established tolerance limits. Initial quality control requirements will be administered by the Program Manager. QCP shall include:

a. Performance Indicators (e.g., management goals relative to cost, schedule, and quality of technical and administrative service provided)

b. Inspection and test methods (e.g., accepted techniques and procedures)

c. Deficiency identification (e.g., areas exceeding acceptable tolerance limits)

d. Deficiency correction (e.g., establishes and implements corrective actions)

e. Documentation and enforcement (e.g., document/enforce corrective actions)

f. Trend analysis (e.g., evaluates and record trends in performance results)

g. Surveillance methods (e.g., collect real time, on-line performance metrics)

h. Customer complaint program (e.g., respond to valid customer complaints)

The QCP shall be the basis of the contractor’s Quality Control (QC) Program, a basic tenet of which shall be continuous quality improvement. The QCP shall also:

a. Recommend QC staff should be independent of the contractor’s production and supervisory staff and to report directly to management.

b. Contain methods of direct and indirect communication with the Government regarding performance, to include regular and formal meetings with the Government, review and analyses of key process indicators, analyses of process deficiencies, and problem resolution.

c. Contain process control and process performance measurement procedures to include how the contractor plans to effect preventive actions and corrective actions, as opposed to reliance on Government or customer identification of deficiencies prior to resolving the problem.

d. Contain a customer issue tracking ticketing system for identification and correction of validated complaints and to provide feedback.

e. Establish procedures to document and record all inspections or tests conducted by the contractor and any corrective actions taken, and their effectiveness, during the performance period.

The Contractor shall submit a QCP to the Contracting Officer within 30 calendar days of award.

The Contracting Officer shall review and approve/disapprove the QCP within 15 calendar days of submission.

C.7. GOVERNMENT REVIEW STANDARDS

C.7.1. Below is a summary of the checks the government will perform on each deliverable for this contract for standards and acceptable quality level of work:

(a) The reports include all sections as identified in the PWS.

(b) The number of cases analyzed for each table is consistent and reflects the number of cases submitted for analysis. Justification for case deletions are provided.

(c) The number of variables reported in each table is consistent and reflects the number of variables submitted for analysis. Justification for variable deletions are provided.

(d) Classical test theory (CTT) summary statistics (e.g., difficulty, discrimination) provided are consistent with expectations based-on the ILR and test design.

(e) Criteria for flagging item performance are consistently applied across reports.

(f) CTT and Item Response Theory (IRT) item and examinee summary statistics are consistent with previous analyses conducted by US Government personnel on subsets of the data submitted for analysis by the contractor.

(g) Contractor summaries and recommendations included in the report are consistent with heuristics used in high-stakes testing programs.

C.8. CONFLICT OF INTEREST

C.8.1. The Contractor shall certify that no personnel have a conflict of interest or the appearance of a conflict of interest. No Contractor or subcontractor personnel shall participate in these analyses without prior-approval of DLIFLC.

C.8.1.1. The Contractor shall attest in writing that no conflicts of interest or appearance of conflicts of interest exist for either the contractor or sub-contractors. Conflict of interest is defined as being involved with another contract or otherwise receiving compensation for the specific set of psychometric analyses for the specific DLPT5 content as defined under this contract.

C.8.1.2. Potential sources of conflict of interest include: (1) Being in a position in which they themselves will take the DLPT in the language they are analyzing, or; (2) being in a position in which they communicate with personnel who will take the DLPT in the language they are analyzing.

C.9. ENTERPRISE CONTRACTOR MANPOWER REPORTING APPLICATION

(https://www.ecmra.mil/)

C.9.1. The U.S. Department of Defense Enterprise Contractor Manpower Reporting Application (eCMRA) is a business process to collect information for each contract, on the funding source and related financial data, the organization receiving the services, mission/function performed, and labor hours and costs, by the Government Fiscal Year (1 October through 30 September).

Contractors report actual labor hours, dollars, and other information directly from their accounting systems directly into this system, or through their Army Requiring Activity, using their existing timekeeping, personnel, accounting systems as well as information supplied with the contract. Existing financial management and procurement systems do not completely distinguish between goods and services, nor do they identify the specific organization for which the work is being performed. eCMRA will enable the Army to (1) fully understand the composition of the Army workforce - military, civilian, and contractor, and allow for more informed workforce staffing and funding decisions; (2) provide better oversight of our workforce, avoid duplication of effort, or shifting of in-house reductions to contract; and (3) better account for and explain our total Army workforce. Contractor labor hours and associated labor costs are to be treated as proprietary information when linked to contractor name and contract number.

C.9.2. The U.S. Department of Defense operates and maintains a secure data collection site where the contractor will report ALL contractor manpower (including subcontractor manpower) required for performance of this contract. The Contractor is required to completely fill in all the information in the format using the following web address: https://www.ecmra.mil/.

C.9.3. Reporting inputs will be for the labor executed during the period of performance during each Government Fiscal Year, which runs from October 1 through September 30. While inputs may be reported any time during the FY, all data shall be reported no later than October 31st of each calendar year for which there is performance. Contractors may direct questions to the help desk by clicking on “Send an email” which is located under the Help Resources ribbon on the right side of the login page of the eCMRA website.

C. 10. SECURITY

C.10.1. The Contractor shall employ personnel and implement procedures to safeguard the security and confidentiality of all deliverables. Contractor shall comply with Army Regulation 611-5 (2008 revision), paragraphs 3-1 and 3-2, as well as DLIFLC regulation 611-1 (dated July 1, 1997), paragraphs 7 and 8. Government will retain sole ownership of, and exclusive rights to, all deliverables and Government Furnished Materials (GFM)..

C.10.2. Confidentiality Agreement: Contractor and all subcontractors’ personnel working under this contract shall sign a Government supplied confidentiality agreement to protect the security of all foreign language testing initiatives by the United States Government. This agreement shall acknowledge that irreparable harm would be caused to Government if the confidential information obtained by Contractor in the performance of tasks included in this Performance Work Statement were to be revealed to third parties. A copy of Contractor and all subcontractor personnel’s signed confidentiality agreement must be received by the Test Development Division before that employee can begin work. The confidentiality agreement entered into by Contractor or subcontractor personnel in connection with this contract shall survive the termination of this contract.

C.10.3. Security Procedures: Contractor or subcontractor personnel shall not show any materials pertaining to this contract to any other person, or discuss its contents, beyond normal work requirements. Contractor or subcontractor personnel shall keep all contract related materials under lock and key at all times when not actually performing the work. Contractor or subcontractor personnel shall not retain paper or electronic copies of any contract deliverables or contract related materials following the delivery of contract deliverables to Government, or re-use any of these materials for future private, public, or commercial use.

C.10.4. Operational Security (OPSEC) and Training: Per AR 530-1 Operations Security, the contractor employees must complete Level I OPSEC Awareness training. New employees must be trained within 30 calendar days of their reporting for duty and annually thereafter. OPSEC Awareness for Military Members, DoD Employees and Contractors is available at the following website: https://www.cdse.edu/catalog/elearning/GS130.html. The Contractor shall practice OPSEC to protect critical information for specific government contracts and subcontracts. The Contractor will ensure that annual OPSEC training is conducted to protect DLIFLC critical information.

C.11. TRAVEL

C.11.1. The Contractor may be required to travel for the purpose of attending Government initiated Psychometric or other related Government meetings. The Government anticipates during each period of performance a requirement for four (4) trips involving two (2) people each to Washington D.C. and/or Monterey, CA. The purpose of the trips is to brief plans and review results. The Government will reimburse for approved travel within the Continental United States in accordance with listed travel cost CLINs.

C.11.2. The Contractor shall use only the minimum number of travelers and rental vehicles required to accomplish the requirement. Contractor personnel are responsible to make all arrangements for travel, lodging and local transportation without assistance of Government personnel. The Contractor shall coordinate security-related paperwork (including obtaining access to military installations) and any other requirements pertinent to this Performance Work Statement.

C.11.3. Whenever travel is determined to be necessary by the Government, Contractor personnel shall be available to travel within two weeks’ notice.

C.11.4. The Contractor shall obtain advance COR approval for travel requirements.

C.11.5. The Contractor shall submit an estimated cost of Contractor attendees for in-person meetings/conferences/orientation. Included in their estimate l shall be a breakdown of costs related to the travel costs and shall include as a minimum, (1) transportation costs (airfare/car rental, etc.); (2) lodging and; (3) per diem for each employee. The contractor shall use JTR rates as guidelines for expenses (these can be found at http://www.defensetravel.dod.mil/site/travelreg.cfm).

C.11.6. The Contractor shall submit an expense report to the COR when invoicing for travel costs. This report shall contain the following, at a minimum:

A brief description of the travel to include traveler(s) name(s), dates of travel, destination and purpose of travel.

Copies of receipts for all airfare, lodging and any expense in excess of $75.00.

Claims for payment of per diem shall be accompanied by a corporate worksheet or copy of the employee’s per diem voucher listing the location, dates and per diem rate applied to the claim.

Acceptable submissions include paid receipts from airlines and hotels or copies of corporate credit / purchase card statements providing that the statement lists the date, vendor name and amount of purchase.

All backup documentation shall clearly indicate the actual date that the contractor incurred the claimed expense.

Failure to provide the required documentation may result in rejection of the contractor’s invoice as not being a proper invoice as described in FAR 32.905(b)(2).

Travel invoices shall be submitted separately from labor invoices.

End of Performance Work Statement